[{"title":"A finite strain gradient theory for viscoplasticity by means of micromorphic regularization","date_created":"2023-05-16T12:21:32Z","publisher":"Wiley","year":"2023","issue":"1","quality_controlled":"1","language":[{"iso":"eng"}],"keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics"],"publication":"PAMM","doi":"10.1002/pamm.202200074","volume":22,"author":[{"first_name":"Ayoub","last_name":"Hamdoun","full_name":"Hamdoun, Ayoub"},{"full_name":"Mahnken, Rolf","id":"335","last_name":"Mahnken","first_name":"Rolf"}],"date_updated":"2023-05-16T12:23:15Z","intvolume":" 22","citation":{"ama":"Hamdoun A, Mahnken R. A finite strain gradient theory for viscoplasticity by means of micromorphic regularization. PAMM. 2023;22(1). doi:10.1002/pamm.202200074","ieee":"A. Hamdoun and R. Mahnken, “A finite strain gradient theory for viscoplasticity by means of micromorphic regularization,” PAMM, vol. 22, no. 1, 2023, doi: 10.1002/pamm.202200074.","chicago":"Hamdoun, Ayoub, and Rolf Mahnken. “A Finite Strain Gradient Theory for Viscoplasticity by Means of Micromorphic Regularization.” PAMM 22, no. 1 (2023). https://doi.org/10.1002/pamm.202200074.","bibtex":"@article{Hamdoun_Mahnken_2023, title={A finite strain gradient theory for viscoplasticity by means of micromorphic regularization}, volume={22}, DOI={10.1002/pamm.202200074}, number={1}, journal={PAMM}, publisher={Wiley}, author={Hamdoun, Ayoub and Mahnken, Rolf}, year={2023} }","short":"A. Hamdoun, R. Mahnken, PAMM 22 (2023).","mla":"Hamdoun, Ayoub, and Rolf Mahnken. “A Finite Strain Gradient Theory for Viscoplasticity by Means of Micromorphic Regularization.” PAMM, vol. 22, no. 1, Wiley, 2023, doi:10.1002/pamm.202200074.","apa":"Hamdoun, A., & Mahnken, R. (2023). A finite strain gradient theory for viscoplasticity by means of micromorphic regularization. PAMM, 22(1). https://doi.org/10.1002/pamm.202200074"},"publication_identifier":{"issn":["1617-7061","1617-7061"]},"publication_status":"published","department":[{"_id":"9"},{"_id":"154"},{"_id":"321"}],"user_id":"335","_id":"44892","status":"public","type":"journal_article"},{"abstract":[{"text":"The aim of the present study was to investigate if the presence of anterior cruciate ligament (ACL) injury risk factors depicted in the laboratory would reflect at-risk patterns in football-specific field data. Twenty-four female footballers (14.9 ± 0.9 year) performed unanticipated cutting maneuvers in a laboratory setting and on the football pitch during football-specific exercises (F-EX) and games (F-GAME). Knee joint moments were collected in the laboratory and grouped using hierarchical agglomerative clustering. The clusters were used to investigate the kinematics collected on field through wearable sensors. Three clusters emerged: Cluster 1 presented the lowest knee moments; Cluster 2 presented high knee extension but low knee abduction and rotation moments; Cluster 3 presented the highest knee abduction, extension, and external rotation moments. In F-EX, greater knee abduction angles were found in Cluster 2 and 3 compared to Cluster 1 (p = 0.007). Cluster 2 showed the lowest knee and hip flexion angles (p < 0.013). Cluster 3 showed the greatest hip external rotation angles (p = 0.006). In F-GAME, Cluster 3 presented the greatest knee external rotation and lowest knee flexion angles (p = 0.003). Clinically relevant differences towards ACL injury identified in the laboratory reflected at-risk patterns only in part when cutting on the field: in the field, low-risk players exhibited similar kinematic patterns as the high-risk players. Therefore, in-lab injury risk screening may lack ecological validity.","lang":"eng"}],"status":"public","publication":"Sensors","type":"journal_article","keyword":["Electrical and Electronic Engineering","Biochemistry","Instrumentation","Atomic and Molecular Physics","and Optics","Analytical Chemistry"],"article_number":"2176","language":[{"iso":"eng"}],"_id":"45134","department":[{"_id":"17"}],"user_id":"46","year":"2023","intvolume":" 23","citation":{"short":"S. Di Paolo, E.M. Nijmeijer, L. Bragonzoni, A. Gokeler, A. Benjaminse, Sensors 23 (2023).","mla":"Di Paolo, Stefano, et al. “Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach.” Sensors, vol. 23, no. 4, 2176, MDPI AG, 2023, doi:10.3390/s23042176.","bibtex":"@article{Di Paolo_Nijmeijer_Bragonzoni_Gokeler_Benjaminse_2023, title={Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach}, volume={23}, DOI={10.3390/s23042176}, number={42176}, journal={Sensors}, publisher={MDPI AG}, author={Di Paolo, Stefano and Nijmeijer, Eline M. and Bragonzoni, Laura and Gokeler, Alli and Benjaminse, Anne}, year={2023} }","apa":"Di Paolo, S., Nijmeijer, E. M., Bragonzoni, L., Gokeler, A., & Benjaminse, A. (2023). Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach. Sensors, 23(4), Article 2176. https://doi.org/10.3390/s23042176","ama":"Di Paolo S, Nijmeijer EM, Bragonzoni L, Gokeler A, Benjaminse A. Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach. Sensors. 2023;23(4). doi:10.3390/s23042176","chicago":"Di Paolo, Stefano, Eline M. Nijmeijer, Laura Bragonzoni, Alli Gokeler, and Anne Benjaminse. “Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach.” Sensors 23, no. 4 (2023). https://doi.org/10.3390/s23042176.","ieee":"S. Di Paolo, E. M. Nijmeijer, L. Bragonzoni, A. Gokeler, and A. Benjaminse, “Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach,” Sensors, vol. 23, no. 4, Art. no. 2176, 2023, doi: 10.3390/s23042176."},"publication_identifier":{"issn":["1424-8220"]},"publication_status":"published","issue":"4","title":"Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach","doi":"10.3390/s23042176","publisher":"MDPI AG","date_updated":"2023-05-19T09:13:42Z","volume":23,"author":[{"first_name":"Stefano","last_name":"Di Paolo","full_name":"Di Paolo, Stefano"},{"full_name":"Nijmeijer, Eline M.","last_name":"Nijmeijer","first_name":"Eline M."},{"first_name":"Laura","full_name":"Bragonzoni, Laura","last_name":"Bragonzoni"},{"last_name":"Gokeler","full_name":"Gokeler, Alli","first_name":"Alli"},{"first_name":"Anne","last_name":"Benjaminse","full_name":"Benjaminse, Anne"}],"date_created":"2023-05-19T09:09:49Z"},{"status":"public","type":"journal_article","publication":"PAMM","keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics"],"language":[{"iso":"eng"}],"_id":"44890","user_id":"335","department":[{"_id":"9"},{"_id":"154"},{"_id":"321"}],"year":"2023","citation":{"chicago":"Tchomgue Simeu, Arnold, and Rolf Mahnken. “Goal‐oriented Adaptivity Based on a Model Hierarchy of Mean‐field and Full‐field Homogenization Methods in Elasto‐plasticity.” PAMM 22, no. 1 (2023). https://doi.org/10.1002/pamm.202200053.","ieee":"A. Tchomgue Simeu and R. Mahnken, “Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in elasto‐plasticity,” PAMM, vol. 22, no. 1, 2023, doi: 10.1002/pamm.202200053.","ama":"Tchomgue Simeu A, Mahnken R. Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in elasto‐plasticity. PAMM. 2023;22(1). doi:10.1002/pamm.202200053","mla":"Tchomgue Simeu, Arnold, and Rolf Mahnken. “Goal‐oriented Adaptivity Based on a Model Hierarchy of Mean‐field and Full‐field Homogenization Methods in Elasto‐plasticity.” PAMM, vol. 22, no. 1, Wiley, 2023, doi:10.1002/pamm.202200053.","bibtex":"@article{Tchomgue Simeu_Mahnken_2023, title={Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in elasto‐plasticity}, volume={22}, DOI={10.1002/pamm.202200053}, number={1}, journal={PAMM}, publisher={Wiley}, author={Tchomgue Simeu, Arnold and Mahnken, Rolf}, year={2023} }","short":"A. Tchomgue Simeu, R. Mahnken, PAMM 22 (2023).","apa":"Tchomgue Simeu, A., & Mahnken, R. (2023). Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in elasto‐plasticity. PAMM, 22(1). https://doi.org/10.1002/pamm.202200053"},"intvolume":" 22","publication_status":"published","publication_identifier":{"issn":["1617-7061","1617-7061"]},"quality_controlled":"1","issue":"1","title":"Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in elasto‐plasticity","doi":"10.1002/pamm.202200053","date_updated":"2023-05-25T10:02:34Z","publisher":"Wiley","date_created":"2023-05-16T12:18:15Z","author":[{"first_name":"Arnold","last_name":"Tchomgue Simeu","full_name":"Tchomgue Simeu, Arnold","id":"83075"},{"first_name":"Rolf","id":"335","full_name":"Mahnken, Rolf","last_name":"Mahnken"}],"volume":22},{"publication_identifier":{"issn":["1041-1135","1941-0174"]},"publication_status":"published","issue":"14","year":"2023","intvolume":" 35","page":"769-772","citation":{"apa":"Kruse, S., Serino, L., Folge, P. F., Echeverria Oviedo, D., Bhattacharjee, A., Stefszky, M., Scheytt, J. C., Brecht, B., & Silberhorn, C. (2023). A Pulsed Lidar System With Ultimate Quantum Range Accuracy. IEEE Photonics Technology Letters, 35(14), 769–772. https://doi.org/10.1109/lpt.2023.3277515","bibtex":"@article{Kruse_Serino_Folge_Echeverria Oviedo_Bhattacharjee_Stefszky_Scheytt_Brecht_Silberhorn_2023, title={A Pulsed Lidar System With Ultimate Quantum Range Accuracy}, volume={35}, DOI={10.1109/lpt.2023.3277515}, number={14}, journal={IEEE Photonics Technology Letters}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Kruse, Stephan and Serino, Laura and Folge, Patrick Fabian and Echeverria Oviedo, Dana and Bhattacharjee, Abhinandan and Stefszky, Michael and Scheytt, J. Christoph and Brecht, Benjamin and Silberhorn, Christine}, year={2023}, pages={769–772} }","short":"S. Kruse, L. Serino, P.F. Folge, D. Echeverria Oviedo, A. Bhattacharjee, M. Stefszky, J.C. Scheytt, B. Brecht, C. Silberhorn, IEEE Photonics Technology Letters 35 (2023) 769–772.","mla":"Kruse, Stephan, et al. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.” IEEE Photonics Technology Letters, vol. 35, no. 14, Institute of Electrical and Electronics Engineers (IEEE), 2023, pp. 769–72, doi:10.1109/lpt.2023.3277515.","ama":"Kruse S, Serino L, Folge PF, et al. A Pulsed Lidar System With Ultimate Quantum Range Accuracy. IEEE Photonics Technology Letters. 2023;35(14):769-772. doi:10.1109/lpt.2023.3277515","chicago":"Kruse, Stephan, Laura Serino, Patrick Fabian Folge, Dana Echeverria Oviedo, Abhinandan Bhattacharjee, Michael Stefszky, J. Christoph Scheytt, Benjamin Brecht, and Christine Silberhorn. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.” IEEE Photonics Technology Letters 35, no. 14 (2023): 769–72. https://doi.org/10.1109/lpt.2023.3277515.","ieee":"S. Kruse et al., “A Pulsed Lidar System With Ultimate Quantum Range Accuracy,” IEEE Photonics Technology Letters, vol. 35, no. 14, pp. 769–772, 2023, doi: 10.1109/lpt.2023.3277515."},"date_updated":"2023-06-06T10:13:05Z","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","volume":35,"date_created":"2023-06-06T10:09:05Z","author":[{"id":"38254","full_name":"Kruse, Stephan","last_name":"Kruse","first_name":"Stephan"},{"last_name":"Serino","full_name":"Serino, Laura","id":"88242","first_name":"Laura"},{"first_name":"Patrick Fabian","id":"88605","full_name":"Folge, Patrick Fabian","last_name":"Folge"},{"last_name":"Echeverria Oviedo","full_name":"Echeverria Oviedo, Dana","first_name":"Dana"},{"first_name":"Abhinandan","last_name":"Bhattacharjee","full_name":"Bhattacharjee, Abhinandan"},{"first_name":"Michael","full_name":"Stefszky, Michael","id":"42777","last_name":"Stefszky"},{"last_name":"Scheytt","orcid":"0000-0002-5950-6618 ","full_name":"Scheytt, J. Christoph","id":"37144","first_name":"J. Christoph"},{"first_name":"Benjamin","last_name":"Brecht","orcid":"0000-0003-4140-0556 ","id":"27150","full_name":"Brecht, Benjamin"},{"first_name":"Christine","full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn"}],"title":"A Pulsed Lidar System With Ultimate Quantum Range Accuracy","doi":"10.1109/lpt.2023.3277515","publication":"IEEE Photonics Technology Letters","type":"journal_article","status":"public","_id":"45485","department":[{"_id":"15"},{"_id":"58"},{"_id":"623"},{"_id":"230"},{"_id":"288"}],"user_id":"27150","keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"language":[{"iso":"eng"}]},{"type":"journal_article","publication":"Optics Express","abstract":[{"text":"Since high-order harmonic generation (HHG) from atoms depends sensitively on the polarization of the driving laser field, the polarization gating (PG) technique was developed and applied successfully to generate isolated attosecond pulses from atomic gases. The situation is, however, different in solid-state systems as it has been demonstrated that due to collisions with neighboring atomic cores of the crystal lattice strong HHG can be generated even by elliptically- and circularly-polarized laser fields. Here we apply PG to solid-state systems and find that the conventional PG technique is inefficient for the generation of isolated ultrashort harmonic pulse bursts. In contrast, we demonstrate that a polarization-skewed laser pulse is able to confine the harmonic emission to a time window of less than one-tenth of the laser cycle. This method provides a novel way to control HHG and to generate isolated attosecond pulses in solids.","lang":"eng"}],"status":"public","project":[{"grant_number":"231447078","name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"},{"name":"TRR 142 - A: TRR 142 - Project Area A","_id":"54"},{"grant_number":"231447078","name":"TRR 142 - A10: TRR 142 - Nichtlinearitäten von atomar dünnen Übergangsmetall-Dichalkogeniden in starken Feldern (A10*)","_id":"165"}],"_id":"45704","user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"35"},{"_id":"230"},{"_id":"429"}],"article_number":"18862","keyword":["Atomic and Molecular Physics","and Optics"],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["1094-4087"]},"issue":"12","year":"2023","citation":{"ieee":"X. Song et al., “Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse,” Optics Express, vol. 31, no. 12, Art. no. 18862, 2023, doi: 10.1364/oe.491418.","chicago":"Song, Xiaohong, Shidong Yang, Guifang Wang, Jianpeng Lin, Liang Wang, Torsten Meier, and Weifeng Yang. “Control of the Electron Dynamics in Solid-State High Harmonic Generation on Ultrafast Time Scales by a Polarization-Skewed Laser Pulse.” Optics Express 31, no. 12 (2023). https://doi.org/10.1364/oe.491418.","ama":"Song X, Yang S, Wang G, et al. Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse. Optics Express. 2023;31(12). doi:10.1364/oe.491418","short":"X. Song, S. Yang, G. Wang, J. Lin, L. Wang, T. Meier, W. Yang, Optics Express 31 (2023).","bibtex":"@article{Song_Yang_Wang_Lin_Wang_Meier_Yang_2023, title={Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse}, volume={31}, DOI={10.1364/oe.491418}, number={1218862}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Song, Xiaohong and Yang, Shidong and Wang, Guifang and Lin, Jianpeng and Wang, Liang and Meier, Torsten and Yang, Weifeng}, year={2023} }","mla":"Song, Xiaohong, et al. “Control of the Electron Dynamics in Solid-State High Harmonic Generation on Ultrafast Time Scales by a Polarization-Skewed Laser Pulse.” Optics Express, vol. 31, no. 12, 18862, Optica Publishing Group, 2023, doi:10.1364/oe.491418.","apa":"Song, X., Yang, S., Wang, G., Lin, J., Wang, L., Meier, T., & Yang, W. (2023). Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse. Optics Express, 31(12), Article 18862. https://doi.org/10.1364/oe.491418"},"intvolume":" 31","date_updated":"2023-06-21T09:56:31Z","publisher":"Optica Publishing Group","author":[{"first_name":"Xiaohong","last_name":"Song","full_name":"Song, Xiaohong"},{"full_name":"Yang, Shidong","last_name":"Yang","first_name":"Shidong"},{"last_name":"Wang","full_name":"Wang, Guifang","first_name":"Guifang"},{"first_name":"Jianpeng","full_name":"Lin, Jianpeng","last_name":"Lin"},{"first_name":"Liang","last_name":"Wang","full_name":"Wang, Liang"},{"id":"344","full_name":"Meier, Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","first_name":"Torsten"},{"first_name":"Weifeng","last_name":"Yang","full_name":"Yang, Weifeng"}],"date_created":"2023-06-21T09:55:18Z","volume":31,"title":"Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse","doi":"10.1364/oe.491418"},{"intvolume":" 5","citation":{"ama":"Zuo R, Song X, Ben S, Meier T, Yang W. Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation. Physical Review Research. 2023;5(2). doi:10.1103/physrevresearch.5.l022040","chicago":"Zuo, Ruixin, Xiaohong Song, Shuai Ben, Torsten Meier, and Weifeng Yang. “Revealing the Nonadiabatic Tunneling Dynamics in Solid-State High Harmonic Generation.” Physical Review Research 5, no. 2 (2023). https://doi.org/10.1103/physrevresearch.5.l022040.","ieee":"R. Zuo, X. Song, S. Ben, T. Meier, and W. Yang, “Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation,” Physical Review Research, vol. 5, no. 2, Art. no. L022040, 2023, doi: 10.1103/physrevresearch.5.l022040.","bibtex":"@article{Zuo_Song_Ben_Meier_Yang_2023, title={Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation}, volume={5}, DOI={10.1103/physrevresearch.5.l022040}, number={2L022040}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Zuo, Ruixin and Song, Xiaohong and Ben, Shuai and Meier, Torsten and Yang, Weifeng}, year={2023} }","short":"R. Zuo, X. Song, S. Ben, T. Meier, W. Yang, Physical Review Research 5 (2023).","mla":"Zuo, Ruixin, et al. “Revealing the Nonadiabatic Tunneling Dynamics in Solid-State High Harmonic Generation.” Physical Review Research, vol. 5, no. 2, L022040, American Physical Society (APS), 2023, doi:10.1103/physrevresearch.5.l022040.","apa":"Zuo, R., Song, X., Ben, S., Meier, T., & Yang, W. (2023). Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation. Physical Review Research, 5(2), Article L022040. https://doi.org/10.1103/physrevresearch.5.l022040"},"publication_identifier":{"issn":["2643-1564"]},"publication_status":"published","doi":"10.1103/physrevresearch.5.l022040","volume":5,"author":[{"last_name":"Zuo","full_name":"Zuo, Ruixin","first_name":"Ruixin"},{"first_name":"Xiaohong","full_name":"Song, Xiaohong","last_name":"Song"},{"full_name":"Ben, Shuai","last_name":"Ben","first_name":"Shuai"},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten","id":"344"},{"full_name":"Yang, Weifeng","last_name":"Yang","first_name":"Weifeng"}],"date_updated":"2023-06-21T09:54:16Z","status":"public","type":"journal_article","article_number":"L022040","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"},{"_id":"429"},{"_id":"35"}],"user_id":"16199","_id":"45703","project":[{"name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53","grant_number":"231447078"},{"_id":"54","name":"TRR 142 - A: TRR 142 - Project Area A"},{"grant_number":"231447078","name":"TRR 142 - A10: TRR 142 - Nichtlinearitäten von atomar dünnen Übergangsmetall-Dichalkogeniden in starken Feldern (A10*)","_id":"165"}],"year":"2023","issue":"2","title":"Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation","date_created":"2023-06-21T09:52:34Z","publisher":"American Physical Society (APS)","publication":"Physical Review Research","language":[{"iso":"eng"}],"keyword":["General Physics and Astronomy"]},{"keyword":["General Physics and Astronomy"],"article_number":"106655","language":[{"iso":"eng"}],"_id":"45709","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"35"},{"_id":"230"}],"user_id":"16199","status":"public","publication":"Results in Physics","type":"journal_article","title":"Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings","doi":"10.1016/j.rinp.2023.106655","date_updated":"2023-06-21T11:46:58Z","publisher":"Elsevier BV","author":[{"last_name":"Belobo","full_name":"Belobo, D. Belobo","first_name":"D. Belobo"},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","id":"344","full_name":"Meier, Torsten"}],"date_created":"2023-06-21T11:46:05Z","year":"2023","citation":{"apa":"Belobo, D. B., & Meier, T. (2023). Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings. Results in Physics, Article 106655. https://doi.org/10.1016/j.rinp.2023.106655","bibtex":"@article{Belobo_Meier_2023, title={Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings}, DOI={10.1016/j.rinp.2023.106655}, number={106655}, journal={Results in Physics}, publisher={Elsevier BV}, author={Belobo, D. Belobo and Meier, Torsten}, year={2023} }","mla":"Belobo, D. Belobo, and Torsten Meier. “Manipulation of Nonautonomous Nonlinear Wave Solutions of the Generalized Coupled Gross–Pitaevskii Equations with Spin–Orbit Interaction and Weak Raman Couplings.” Results in Physics, 106655, Elsevier BV, 2023, doi:10.1016/j.rinp.2023.106655.","short":"D.B. Belobo, T. Meier, Results in Physics (2023).","ieee":"D. B. Belobo and T. Meier, “Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings,” Results in Physics, Art. no. 106655, 2023, doi: 10.1016/j.rinp.2023.106655.","chicago":"Belobo, D. Belobo, and Torsten Meier. “Manipulation of Nonautonomous Nonlinear Wave Solutions of the Generalized Coupled Gross–Pitaevskii Equations with Spin–Orbit Interaction and Weak Raman Couplings.” Results in Physics, 2023. https://doi.org/10.1016/j.rinp.2023.106655.","ama":"Belobo DB, Meier T. Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings. Results in Physics. Published online 2023. doi:10.1016/j.rinp.2023.106655"},"publication_identifier":{"issn":["2211-3797"]},"publication_status":"published"},{"_id":"45763","user_id":"78800","keyword":["Physics and Astronomy (miscellaneous)"],"publication":"Communications in Theoretical Physics","type":"journal_article","abstract":[{"lang":"eng","text":"Abstract\n The development of potential theory heightens the understanding of fundamental interactions in quantum systems. In this paper, the bound state solution of the modified radial Klein-Gordon equation is presented for generalised tanh-shaped hyperbolic potential from the Nikiforov-Uvarov method. The resulting energy eigenvalues and corresponding radial wave functions are expressed in terms of the Jacobi polynomials for arbitrary $l$ states. It is also demonstrated that energy eigenvalues strongly correlate with potential parameters for quantum states. Considering particular cases, the generalised tanh-shaped hyperbolic potential and its derived energy eigenvalues exhibit good agreement with the reported findings. Furthermore, the rovibrational energies are calculated for three representative diatomic molecules, namely $\\rm{H_{2}}$, $\\rm{HCl}$ and $\\rm{O_{2}}$. The lowest excitation energies are in perfect agreement with experimental results. Overall, the potential model is displayed to be a viable candidate for concurrently prescribing numerous quantum systems."}],"status":"public","date_updated":"2023-06-24T19:40:56Z","publisher":"IOP Publishing","author":[{"first_name":"Vatan","full_name":"Badalov, Vatan","last_name":"Badalov"},{"full_name":"Badalov, Sabuhi","last_name":"Badalov","first_name":"Sabuhi"}],"date_created":"2023-06-24T19:40:20Z","title":"Generalised tanh-shaped hyperbolic potential: Klein-Gordon equation's bound state solution","doi":"10.1088/1572-9494/acd441","publication_identifier":{"issn":["0253-6102","1572-9494"]},"publication_status":"published","year":"2023","citation":{"apa":"Badalov, V., & Badalov, S. (2023). Generalised tanh-shaped hyperbolic potential: Klein-Gordon equation’s bound state solution. Communications in Theoretical Physics. https://doi.org/10.1088/1572-9494/acd441","mla":"Badalov, Vatan, and Sabuhi Badalov. “Generalised Tanh-Shaped Hyperbolic Potential: Klein-Gordon Equation’s Bound State Solution.” Communications in Theoretical Physics, IOP Publishing, 2023, doi:10.1088/1572-9494/acd441.","short":"V. Badalov, S. Badalov, Communications in Theoretical Physics (2023).","bibtex":"@article{Badalov_Badalov_2023, title={Generalised tanh-shaped hyperbolic potential: Klein-Gordon equation’s bound state solution}, DOI={10.1088/1572-9494/acd441}, journal={Communications in Theoretical Physics}, publisher={IOP Publishing}, author={Badalov, Vatan and Badalov, Sabuhi}, year={2023} }","ama":"Badalov V, Badalov S. Generalised tanh-shaped hyperbolic potential: Klein-Gordon equation’s bound state solution. Communications in Theoretical Physics. Published online 2023. doi:10.1088/1572-9494/acd441","ieee":"V. Badalov and S. Badalov, “Generalised tanh-shaped hyperbolic potential: Klein-Gordon equation’s bound state solution,” Communications in Theoretical Physics, 2023, doi: 10.1088/1572-9494/acd441.","chicago":"Badalov, Vatan, and Sabuhi Badalov. “Generalised Tanh-Shaped Hyperbolic Potential: Klein-Gordon Equation’s Bound State Solution.” Communications in Theoretical Physics, 2023. https://doi.org/10.1088/1572-9494/acd441."}},{"_id":"45868","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"user_id":"30525","article_number":"3915","file_date_updated":"2023-07-06T06:40:28Z","type":"journal_article","status":"public","date_updated":"2023-07-06T06:42:10Z","oa":"1","volume":14,"author":[{"first_name":"Hammad","last_name":"Ahmed","full_name":"Ahmed, Hammad"},{"full_name":"Ansari, Muhammad Afnan","last_name":"Ansari","first_name":"Muhammad Afnan"},{"full_name":"Li, Yan","last_name":"Li","first_name":"Yan"},{"full_name":"Zentgraf, Thomas","id":"30525","orcid":"0000-0002-8662-1101","last_name":"Zentgraf","first_name":"Thomas"},{"last_name":"Mehmood","full_name":"Mehmood, Muhammad Qasim","first_name":"Muhammad Qasim"},{"first_name":"Xianzhong","last_name":"Chen","full_name":"Chen, Xianzhong"}],"doi":"10.1038/s41467-023-39599-8","main_file_link":[{"open_access":"1"}],"has_accepted_license":"1","publication_identifier":{"issn":["2041-1723"]},"publication_status":"published","intvolume":" 14","citation":{"apa":"Ahmed, H., Ansari, M. A., Li, Y., Zentgraf, T., Mehmood, M. Q., & Chen, X. (2023). Dynamic control of hybrid grafted perfect vector vortex beams. Nature Communications, 14(1), Article 3915. https://doi.org/10.1038/s41467-023-39599-8","mla":"Ahmed, Hammad, et al. “Dynamic Control of Hybrid Grafted Perfect Vector Vortex Beams.” Nature Communications, vol. 14, no. 1, 3915, Springer Science and Business Media LLC, 2023, doi:10.1038/s41467-023-39599-8.","bibtex":"@article{Ahmed_Ansari_Li_Zentgraf_Mehmood_Chen_2023, title={Dynamic control of hybrid grafted perfect vector vortex beams}, volume={14}, DOI={10.1038/s41467-023-39599-8}, number={13915}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Ahmed, Hammad and Ansari, Muhammad Afnan and Li, Yan and Zentgraf, Thomas and Mehmood, Muhammad Qasim and Chen, Xianzhong}, year={2023} }","short":"H. Ahmed, M.A. Ansari, Y. Li, T. Zentgraf, M.Q. Mehmood, X. Chen, Nature Communications 14 (2023).","ieee":"H. Ahmed, M. A. Ansari, Y. Li, T. Zentgraf, M. Q. Mehmood, and X. Chen, “Dynamic control of hybrid grafted perfect vector vortex beams,” Nature Communications, vol. 14, no. 1, Art. no. 3915, 2023, doi: 10.1038/s41467-023-39599-8.","chicago":"Ahmed, Hammad, Muhammad Afnan Ansari, Yan Li, Thomas Zentgraf, Muhammad Qasim Mehmood, and Xianzhong Chen. “Dynamic Control of Hybrid Grafted Perfect Vector Vortex Beams.” Nature Communications 14, no. 1 (2023). https://doi.org/10.1038/s41467-023-39599-8.","ama":"Ahmed H, Ansari MA, Li Y, Zentgraf T, Mehmood MQ, Chen X. Dynamic control of hybrid grafted perfect vector vortex beams. Nature Communications. 2023;14(1). doi:10.1038/s41467-023-39599-8"},"keyword":["General Physics and Astronomy","General Biochemistry","Genetics and Molecular Biology","General Chemistry","Multidisciplinary"],"ddc":["530"],"language":[{"iso":"eng"}],"publication":"Nature Communications","abstract":[{"lang":"eng","text":"Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their peculiar optical features. PVVBs are typically generated through the superposition of perfect vortex beams, which suffer from the limited number of topological charges (TCs). Furthermore, dynamic control of PVVBs is desirable and has not been reported. We propose and experimentally demonstrate hybrid grafted perfect vector vortex beams (GPVVBs) and their dynamic control. Hybrid GPVVBs are generated through the superposition of grafted perfect vortex beams with a multifunctional metasurface. The generated hybrid GPVVBs possess spatially variant rates of polarization change due to the involvement of more TCs. Each hybrid GPVVB includes different GPVVBs in the same beam, adding more design flexibility. Moreover, these beams are dynamically controlled with a rotating half waveplate. The generated dynamic GPVVBs may find applications in the fields where dynamic control is in high demand, including optical encryption, dense data communication, and multiple particle manipulation."}],"file":[{"date_updated":"2023-07-06T06:40:28Z","date_created":"2023-07-06T06:40:28Z","creator":"zentgraf","file_size":4341041,"file_name":"NatureCommun_Ahmed_2023.pdf","access_level":"closed","file_id":"45869","content_type":"application/pdf","success":1,"relation":"main_file"}],"publisher":"Springer Science and Business Media LLC","date_created":"2023-07-06T06:34:37Z","title":"Dynamic control of hybrid grafted perfect vector vortex beams","quality_controlled":"1","issue":"1","year":"2023"},{"doi":"10.1364/oe.484126","title":"Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler","volume":31,"date_created":"2023-07-03T14:08:36Z","author":[{"first_name":"Silia","last_name":"Babel","orcid":"https://orcid.org/0000-0002-1568-2580","id":"63231","full_name":"Babel, Silia"},{"first_name":"Laura","full_name":"Bollmers, Laura","id":"61375","last_name":"Bollmers"},{"id":"59545","full_name":"Massaro, Marcello","last_name":"Massaro","orcid":"0000-0002-2539-7652","first_name":"Marcello"},{"first_name":"Kai Hong","id":"36389","full_name":"Luo, Kai Hong","last_name":"Luo","orcid":"0000-0003-1008-4976"},{"first_name":"Michael","id":"42777","full_name":"Stefszky, Michael","last_name":"Stefszky"},{"first_name":"Federico","full_name":"Pegoraro, Federico","id":"88928","last_name":"Pegoraro"},{"last_name":"Held","full_name":"Held, Philip","id":"68236","first_name":"Philip"},{"full_name":"Herrmann, Harald","id":"216","last_name":"Herrmann","first_name":"Harald"},{"first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","id":"13244","full_name":"Eigner, Christof"},{"id":"27150","full_name":"Brecht, Benjamin","orcid":"0000-0003-4140-0556 ","last_name":"Brecht","first_name":"Benjamin"},{"first_name":"Laura","last_name":"Padberg","id":"40300","full_name":"Padberg, Laura"},{"first_name":"Christine","last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine"}],"publisher":"Optica Publishing Group","date_updated":"2023-07-05T07:58:31Z","intvolume":" 31","citation":{"ieee":"S. Babel et al., “Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler,” Optics Express, vol. 31, no. 14, Art. no. 23140, 2023, doi: 10.1364/oe.484126.","chicago":"Babel, Silia, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky, Federico Pegoraro, Philip Held, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” Optics Express 31, no. 14 (2023). https://doi.org/10.1364/oe.484126.","ama":"Babel S, Bollmers L, Massaro M, et al. Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. Optics Express. 2023;31(14). doi:10.1364/oe.484126","mla":"Babel, Silia, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” Optics Express, vol. 31, no. 14, 23140, Optica Publishing Group, 2023, doi:10.1364/oe.484126.","short":"S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P. Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express 31 (2023).","bibtex":"@article{Babel_Bollmers_Massaro_Luo_Stefszky_Pegoraro_Held_Herrmann_Eigner_Brecht_et al._2023, title={Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler}, volume={31}, DOI={10.1364/oe.484126}, number={1423140}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel, Silia and Bollmers, Laura and Massaro, Marcello and Luo, Kai Hong and Stefszky, Michael and Pegoraro, Federico and Held, Philip and Herrmann, Harald and Eigner, Christof and Brecht, Benjamin and et al.}, year={2023} }","apa":"Babel, S., Bollmers, L., Massaro, M., Luo, K. H., Stefszky, M., Pegoraro, F., Held, P., Herrmann, H., Eigner, C., Brecht, B., Padberg, L., & Silberhorn, C. (2023). Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. Optics Express, 31(14), Article 23140. https://doi.org/10.1364/oe.484126"},"year":"2023","issue":"14","publication_identifier":{"issn":["1094-4087"]},"publication_status":"published","language":[{"iso":"eng"}],"keyword":["Atomic and Molecular Physics","and Optics"],"article_number":"23140","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"},{"_id":"288"}],"user_id":"63231","_id":"45850","status":"public","abstract":[{"text":"Interference between single photons is key for many quantum optics experiments and applications in quantum technologies, such as quantum communication or computation. It is advantageous to operate the systems at telecommunication wavelengths and to integrate the setups for these applications in order to improve stability, compactness and scalability. A new promising material platform for integrated quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel (HOM) interference between telecom photons from an engineered parametric down-conversion source in an LNOI directional coupler. The coupler has been designed and fabricated in house and provides close to perfect balanced beam splitting. We obtain a raw HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and in good agreement with off-chip measurements. This lays the foundation for more sophisticated quantum experiments in LNOI.","lang":"eng"}],"publication":"Optics Express","type":"journal_article"},{"status":"public","publication":"physica status solidi (b)","type":"journal_article","language":[{"iso":"eng"}],"keyword":["Condensed Matter Physics","Electronic","Optical and Magnetic Materials"],"department":[{"_id":"15"},{"_id":"230"}],"user_id":"42514","_id":"46132","intvolume":" 260","citation":{"bibtex":"@article{Littmann_Reuter_As_2023, title={Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy}, volume={260}, DOI={10.1002/pssb.202300034}, number={7}, journal={physica status solidi (b)}, publisher={Wiley}, author={Littmann, Mario and Reuter, Dirk and As, Donat Josef}, year={2023} }","mla":"Littmann, Mario, et al. “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy.” Physica Status Solidi (b), vol. 260, no. 7, Wiley, 2023, doi:10.1002/pssb.202300034.","short":"M. Littmann, D. Reuter, D.J. As, Physica Status Solidi (b) 260 (2023).","apa":"Littmann, M., Reuter, D., & As, D. J. (2023). Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy. Physica Status Solidi (b), 260(7). https://doi.org/10.1002/pssb.202300034","ama":"Littmann M, Reuter D, As DJ. Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy. physica status solidi (b). 2023;260(7). doi:10.1002/pssb.202300034","chicago":"Littmann, Mario, Dirk Reuter, and Donat Josef As. “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy.” Physica Status Solidi (b) 260, no. 7 (2023). https://doi.org/10.1002/pssb.202300034.","ieee":"M. Littmann, D. Reuter, and D. J. As, “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy,” physica status solidi (b), vol. 260, no. 7, 2023, doi: 10.1002/pssb.202300034."},"year":"2023","issue":"7","publication_identifier":{"issn":["0370-1972","1521-3951"]},"publication_status":"published","doi":"10.1002/pssb.202300034","title":"Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy","volume":260,"date_created":"2023-07-25T08:06:13Z","author":[{"first_name":"Mario","last_name":"Littmann","full_name":"Littmann, Mario"},{"first_name":"Dirk","full_name":"Reuter, Dirk","id":"37763","last_name":"Reuter"},{"first_name":"Donat Josef","id":"14","full_name":"As, Donat Josef","last_name":"As","orcid":"0000-0003-1121-3565"}],"date_updated":"2023-07-25T08:07:20Z","publisher":"Wiley"},{"type":"journal_article","status":"public","user_id":"216","department":[{"_id":"230"},{"_id":"623"},{"_id":"288"}],"project":[{"name":"UNIQORN: UNIQORN - Affordable Quantum Communication for Everyone - EU Quantum Flagship Project","_id":"218"}],"_id":"46138","article_type":"original","article_number":"2999","publication_status":"published","publication_identifier":{"issn":["0146-9592","1539-4794"]},"citation":{"apa":"Domeneguetti, R., Stefszky, M., Herrmann, H., Silberhorn, C., Andersen, U. L., Neergaard-Nielsen, J. S., & Gehring, T. (2023). Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics Letters, 48(11), Article 2999. https://doi.org/10.1364/ol.486654","short":"R. Domeneguetti, M. Stefszky, H. Herrmann, C. Silberhorn, U.L. Andersen, J.S. Neergaard-Nielsen, T. Gehring, Optics Letters 48 (2023).","mla":"Domeneguetti, Renato, et al. “Fully Guided and Phase Locked Ti:PPLN Waveguide Squeezing for Applications in Quantum Sensing.” Optics Letters, vol. 48, no. 11, 2999, Optica Publishing Group, 2023, doi:10.1364/ol.486654.","bibtex":"@article{Domeneguetti_Stefszky_Herrmann_Silberhorn_Andersen_Neergaard-Nielsen_Gehring_2023, title={Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing}, volume={48}, DOI={10.1364/ol.486654}, number={112999}, journal={Optics Letters}, publisher={Optica Publishing Group}, author={Domeneguetti, Renato and Stefszky, Michael and Herrmann, Harald and Silberhorn, Christine and Andersen, Ulrik L. and Neergaard-Nielsen, Jonas S. and Gehring, Tobias}, year={2023} }","ama":"Domeneguetti R, Stefszky M, Herrmann H, et al. Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics Letters. 2023;48(11). doi:10.1364/ol.486654","chicago":"Domeneguetti, Renato, Michael Stefszky, Harald Herrmann, Christine Silberhorn, Ulrik L. Andersen, Jonas S. Neergaard-Nielsen, and Tobias Gehring. “Fully Guided and Phase Locked Ti:PPLN Waveguide Squeezing for Applications in Quantum Sensing.” Optics Letters 48, no. 11 (2023). https://doi.org/10.1364/ol.486654.","ieee":"R. Domeneguetti et al., “Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing,” Optics Letters, vol. 48, no. 11, Art. no. 2999, 2023, doi: 10.1364/ol.486654."},"intvolume":" 48","author":[{"full_name":"Domeneguetti, Renato","last_name":"Domeneguetti","first_name":"Renato"},{"full_name":"Stefszky, Michael","id":"42777","last_name":"Stefszky","first_name":"Michael"},{"last_name":"Herrmann","full_name":"Herrmann, Harald","id":"216","first_name":"Harald"},{"id":"26263","full_name":"Silberhorn, Christine","last_name":"Silberhorn","first_name":"Christine"},{"last_name":"Andersen","full_name":"Andersen, Ulrik L.","first_name":"Ulrik L."},{"first_name":"Jonas S.","last_name":"Neergaard-Nielsen","full_name":"Neergaard-Nielsen, Jonas S."},{"first_name":"Tobias","full_name":"Gehring, Tobias","last_name":"Gehring"}],"volume":48,"date_updated":"2023-07-25T10:58:05Z","doi":"10.1364/ol.486654","publication":"Optics Letters","abstract":[{"lang":"eng","text":"This work reports a fully guided setup for single-mode squeezing on integrated titanium-indiffused periodically poled nonlinear resonators. A continuous-wave laser beam is delivered and the squeezed field is collected by single-mode fibers; up to −3.17(9) dB of useful squeezing is available in fibers. To showcase the usefulness of such a fiber-coupled device, we applied the generated squeezed light in a fiber-based phase sensing experiment, showing a quantum enhancement in the signal-to-noise ratio of 0.35 dB. Moreover, our investigation of the effect of photorefraction on the cavity resonance condition suggests that it causes system instabilities at high powers."}],"language":[{"iso":"eng"}],"keyword":["Atomic and Molecular Physics","and Optics"],"issue":"11","quality_controlled":"1","year":"2023","date_created":"2023-07-25T10:35:24Z","publisher":"Optica Publishing Group","title":"Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing"},{"publication":"Journal of Computational and Applied Mathematics","file":[{"date_created":"2022-06-28T15:25:50Z","date_updated":"2022-06-28T15:25:50Z","access_level":"open_access","file_id":"32274","title":"Variational Learning of Euler–Lagrange Dynamics from Data","description":"The principle of least action is one of the most fundamental physical principle. It says that among all possible motions\nconnecting two points in a phase space, the system will exhibit those motions which extremise an action functional.\nMany qualitative features of dynamical systems, such as the presence of conservation laws and energy balance equa-\ntions, are related to the existence of an action functional. Incorporating variational structure into learning algorithms\nfor dynamical systems is, therefore, crucial in order to make sure that the learned model shares important features\nwith the exact physical system. In this paper we show how to incorporate variational principles into trajectory predic-\ntions of learned dynamical systems. The novelty of this work is that (1) our technique relies only on discrete position\ndata of observed trajectories. Velocities or conjugate momenta do not need to be observed or approximated and no\nprior knowledge about the form of the variational principle is assumed. Instead, they are recovered using backward\nerror analysis. (2) Moreover, our technique compensates discretisation errors when trajectories are computed from the\nlearned system. This is important when moderate to large step-sizes are used and high accuracy is required. For this,\nwe introduce and rigorously analyse the concept of inverse modified Lagrangians by developing an inverse version of\nvariational backward error analysis. (3) Finally, we introduce a method to perform system identification from position\nobservations only, based on variational backward error analysis.","relation":"main_file","creator":"coffen","file_name":"ShadowLagrangian_revision1_journal_style_arxiv.pdf","file_size":3640770,"content_type":"application/pdf"}],"abstract":[{"text":"The principle of least action is one of the most fundamental physical principle. It says that among all possible motions connecting two points in a phase space, the system will exhibit those motions which extremise an action functional. Many qualitative features of dynamical systems, such as the presence of conservation laws and energy balance equations, are related to the existence of an action functional. Incorporating variational structure into learning algorithms for dynamical systems is, therefore, crucial in order to make sure that the learned model shares important features with the exact physical system. In this paper we show how to incorporate variational principles into trajectory predictions of learned dynamical systems. The novelty of this work is that (1) our technique relies only on discrete position data of observed trajectories. Velocities or conjugate momenta do not need to be observed or approximated and no prior knowledge about the form of the variational principle is assumed. Instead, they are recovered using backward error analysis. (2) Moreover, our technique compensates discretisation errors when trajectories are computed from the learned system. This is important when moderate to large step-sizes are used and high accuracy is required. For this,\r\nwe introduce and rigorously analyse the concept of inverse modified Lagrangians by developing an inverse version of variational backward error analysis. (3) Finally, we introduce a method to perform system identification from position observations only, based on variational backward error analysis.","lang":"eng"}],"external_id":{"arxiv":["2112.12619"]},"language":[{"iso":"eng"}],"ddc":["510"],"keyword":["Lagrangian learning","variational backward error analysis","modified Lagrangian","variational integrators","physics informed learning"],"quality_controlled":"1","year":"2023","date_created":"2022-01-11T13:24:00Z","publisher":"Elsevier","title":"Variational Learning of Euler–Lagrange Dynamics from Data","type":"journal_article","status":"public","user_id":"85279","department":[{"_id":"636"}],"_id":"29240","file_date_updated":"2022-06-28T15:25:50Z","article_type":"original","related_material":{"link":[{"relation":"software","url":"https://github.com/Christian-Offen/LagrangianShadowIntegration"}]},"publication_status":"epub_ahead","has_accepted_license":"1","publication_identifier":{"issn":["0377-0427"]},"citation":{"chicago":"Ober-Blöbaum, Sina, and Christian Offen. “Variational Learning of Euler–Lagrange Dynamics from Data.” Journal of Computational and Applied Mathematics 421 (2023): 114780. https://doi.org/10.1016/j.cam.2022.114780.","ieee":"S. Ober-Blöbaum and C. Offen, “Variational Learning of Euler–Lagrange Dynamics from Data,” Journal of Computational and Applied Mathematics, vol. 421, p. 114780, 2023, doi: 10.1016/j.cam.2022.114780.","ama":"Ober-Blöbaum S, Offen C. Variational Learning of Euler–Lagrange Dynamics from Data. Journal of Computational and Applied Mathematics. 2023;421:114780. doi:10.1016/j.cam.2022.114780","mla":"Ober-Blöbaum, Sina, and Christian Offen. “Variational Learning of Euler–Lagrange Dynamics from Data.” Journal of Computational and Applied Mathematics, vol. 421, Elsevier, 2023, p. 114780, doi:10.1016/j.cam.2022.114780.","bibtex":"@article{Ober-Blöbaum_Offen_2023, title={Variational Learning of Euler–Lagrange Dynamics from Data}, volume={421}, DOI={10.1016/j.cam.2022.114780}, journal={Journal of Computational and Applied Mathematics}, publisher={Elsevier}, author={Ober-Blöbaum, Sina and Offen, Christian}, year={2023}, pages={114780} }","short":"S. Ober-Blöbaum, C. Offen, Journal of Computational and Applied Mathematics 421 (2023) 114780.","apa":"Ober-Blöbaum, S., & Offen, C. (2023). Variational Learning of Euler–Lagrange Dynamics from Data. Journal of Computational and Applied Mathematics, 421, 114780. https://doi.org/10.1016/j.cam.2022.114780"},"intvolume":" 421","page":"114780","author":[{"first_name":"Sina","last_name":"Ober-Blöbaum","id":"16494","full_name":"Ober-Blöbaum, Sina"},{"orcid":"0000-0002-5940-8057","last_name":"Offen","full_name":"Offen, Christian","id":"85279","first_name":"Christian"}],"volume":421,"date_updated":"2023-08-10T08:42:39Z","oa":"1","doi":"10.1016/j.cam.2022.114780"},{"issue":"5","publication_status":"published","publication_identifier":{"issn":["2158-3226"]},"citation":{"apa":"Deutsch, D., Buchholz, C., Zolatanosha, V., Jöns, K. D., & Reuter, D. (2023). Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers. AIP Advances, 13(5). https://doi.org/10.1063/5.0147281","bibtex":"@article{Deutsch_Buchholz_Zolatanosha_Jöns_Reuter_2023, title={Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers}, volume={13}, DOI={10.1063/5.0147281}, number={5}, journal={AIP Advances}, publisher={AIP Publishing}, author={Deutsch, D. and Buchholz, C. and Zolatanosha, V. and Jöns, K. D. and Reuter, D.}, year={2023} }","mla":"Deutsch, D., et al. “Telecom C-Band Photon Emission from (In,Ga)As Quantum Dots Generated by Filling Nanoholes in In0.52Al0.48As Layers.” AIP Advances, vol. 13, no. 5, AIP Publishing, 2023, doi:10.1063/5.0147281.","short":"D. Deutsch, C. Buchholz, V. Zolatanosha, K.D. Jöns, D. Reuter, AIP Advances 13 (2023).","ama":"Deutsch D, Buchholz C, Zolatanosha V, Jöns KD, Reuter D. Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers. AIP Advances. 2023;13(5). doi:10.1063/5.0147281","chicago":"Deutsch, D., C. Buchholz, V. Zolatanosha, K. D. Jöns, and D. Reuter. “Telecom C-Band Photon Emission from (In,Ga)As Quantum Dots Generated by Filling Nanoholes in In0.52Al0.48As Layers.” AIP Advances 13, no. 5 (2023). https://doi.org/10.1063/5.0147281.","ieee":"D. Deutsch, C. Buchholz, V. Zolatanosha, K. D. Jöns, and D. Reuter, “Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers,” AIP Advances, vol. 13, no. 5, 2023, doi: 10.1063/5.0147281."},"intvolume":" 13","year":"2023","author":[{"first_name":"D.","full_name":"Deutsch, D.","last_name":"Deutsch"},{"last_name":"Buchholz","full_name":"Buchholz, C.","first_name":"C."},{"first_name":"V.","last_name":"Zolatanosha","full_name":"Zolatanosha, V."},{"first_name":"K. D.","last_name":"Jöns","full_name":"Jöns, K. D."},{"first_name":"D.","full_name":"Reuter, D.","last_name":"Reuter"}],"date_created":"2023-05-15T08:55:49Z","volume":13,"date_updated":"2023-08-14T10:05:15Z","publisher":"AIP Publishing","doi":"10.1063/5.0147281","title":"Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers","type":"journal_article","publication":"AIP Advances","status":"public","abstract":[{"lang":"eng","text":"We present the fabrication of strain-free quantum dots in the In0.53Ga0.47As/In0.52Al0.48As-system lattice matched to InP, as future sources for single and entangled photons for long-haul fiber-based quantum communication in the optical C-band. We achieved these quantum dots by local droplet etching via InAl droplets in an In0.52Al0.48As layer and subsequent filling of the holes with In0.53Ga0.47As. Here, we present detailed investigations of the hole morphologies measured by atomic force microscopy. Statistical analysis of a set of nanoholes reveals a high degree of symmetry for nearly half of them when etched at optimized temperatures. Overgrowth with 50–150 nm In0.52Al0.48As increases their diameter and elongates the holes along the [01̄1]-direction. By systematically scanning the parameter space, we were able to fill the holes with In0.53Ga0.47As, and by capping the filled holes and performing photoluminescence measurements, we observe photoluminescence emission in the O-band up into the C-band depending on the filling height of the nanoholes."}],"user_id":"37763","department":[{"_id":"15"},{"_id":"230"}],"_id":"44851","language":[{"iso":"eng"}],"keyword":["General Physics and Astronomy"]},{"status":"public","publication":"Journal of Electron Spectroscopy and Related Phenomena","type":"journal_article","language":[{"iso":"eng"}],"keyword":["Physical and Theoretical Chemistry","Spectroscopy","Condensed Matter Physics","Atomic and Molecular Physics","and Optics","Radiation","Electronic","Optical and Magnetic Materials"],"article_number":"147317","department":[{"_id":"302"}],"user_id":"54556","_id":"46480","intvolume":" 264","citation":{"apa":"Müller, H., Weinberger, C., Grundmeier, G., & de los Arcos de Pedro, M. T. (2023). UV-enhanced environmental charge compensation in near ambient pressure XPS. Journal of Electron Spectroscopy and Related Phenomena, 264, Article 147317. https://doi.org/10.1016/j.elspec.2023.147317","short":"H. Müller, C. Weinberger, G. Grundmeier, M.T. de los Arcos de Pedro, Journal of Electron Spectroscopy and Related Phenomena 264 (2023).","bibtex":"@article{Müller_Weinberger_Grundmeier_de los Arcos de Pedro_2023, title={UV-enhanced environmental charge compensation in near ambient pressure XPS}, volume={264}, DOI={10.1016/j.elspec.2023.147317}, number={147317}, journal={Journal of Electron Spectroscopy and Related Phenomena}, publisher={Elsevier BV}, author={Müller, Hendrik and Weinberger, Christian and Grundmeier, Guido and de los Arcos de Pedro, Maria Teresa}, year={2023} }","mla":"Müller, Hendrik, et al. “UV-Enhanced Environmental Charge Compensation in near Ambient Pressure XPS.” Journal of Electron Spectroscopy and Related Phenomena, vol. 264, 147317, Elsevier BV, 2023, doi:10.1016/j.elspec.2023.147317.","ama":"Müller H, Weinberger C, Grundmeier G, de los Arcos de Pedro MT. UV-enhanced environmental charge compensation in near ambient pressure XPS. Journal of Electron Spectroscopy and Related Phenomena. 2023;264. doi:10.1016/j.elspec.2023.147317","chicago":"Müller, Hendrik, Christian Weinberger, Guido Grundmeier, and Maria Teresa de los Arcos de Pedro. “UV-Enhanced Environmental Charge Compensation in near Ambient Pressure XPS.” Journal of Electron Spectroscopy and Related Phenomena 264 (2023). https://doi.org/10.1016/j.elspec.2023.147317.","ieee":"H. Müller, C. Weinberger, G. Grundmeier, and M. T. de los Arcos de Pedro, “UV-enhanced environmental charge compensation in near ambient pressure XPS,” Journal of Electron Spectroscopy and Related Phenomena, vol. 264, Art. no. 147317, 2023, doi: 10.1016/j.elspec.2023.147317."},"year":"2023","publication_identifier":{"issn":["0368-2048"]},"publication_status":"published","doi":"10.1016/j.elspec.2023.147317","title":"UV-enhanced environmental charge compensation in near ambient pressure XPS","volume":264,"date_created":"2023-08-11T14:11:57Z","author":[{"last_name":"Müller","full_name":"Müller, Hendrik","first_name":"Hendrik"},{"first_name":"Christian","last_name":"Weinberger","id":"11848","full_name":"Weinberger, Christian"},{"first_name":"Guido","last_name":"Grundmeier","id":"194","full_name":"Grundmeier, Guido"},{"first_name":"Maria Teresa","last_name":"de los Arcos de Pedro","full_name":"de los Arcos de Pedro, Maria Teresa","id":"54556"}],"publisher":"Elsevier BV","date_updated":"2023-08-11T14:13:19Z"},{"issue":"14","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["1438-1656","1527-2648"]},"citation":{"apa":"Pramanik, S., Milaege, D., Hein, M., Andreiev, A., Schaper, M., & Hoyer, K.-P. (2023). An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures. Advanced Engineering Materials, 25(14). https://doi.org/10.1002/adem.202201850","mla":"Pramanik, Sudipta, et al. “An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures.” Advanced Engineering Materials, vol. 25, no. 14, Wiley, 2023, doi:10.1002/adem.202201850.","short":"S. Pramanik, D. Milaege, M. Hein, A. Andreiev, M. Schaper, K.-P. Hoyer, Advanced Engineering Materials 25 (2023).","bibtex":"@article{Pramanik_Milaege_Hein_Andreiev_Schaper_Hoyer_2023, title={An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures}, volume={25}, DOI={10.1002/adem.202201850}, number={14}, journal={Advanced Engineering Materials}, publisher={Wiley}, author={Pramanik, Sudipta and Milaege, Dennis and Hein, Maxwell and Andreiev, Anatolii and Schaper, Mirko and Hoyer, Kay-Peter}, year={2023} }","chicago":"Pramanik, Sudipta, Dennis Milaege, Maxwell Hein, Anatolii Andreiev, Mirko Schaper, and Kay-Peter Hoyer. “An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures.” Advanced Engineering Materials 25, no. 14 (2023). https://doi.org/10.1002/adem.202201850.","ieee":"S. Pramanik, D. Milaege, M. Hein, A. Andreiev, M. Schaper, and K.-P. Hoyer, “An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures,” Advanced Engineering Materials, vol. 25, no. 14, 2023, doi: 10.1002/adem.202201850.","ama":"Pramanik S, Milaege D, Hein M, Andreiev A, Schaper M, Hoyer K-P. An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures. Advanced Engineering Materials. 2023;25(14). doi:10.1002/adem.202201850"},"intvolume":" 25","year":"2023","date_created":"2023-08-16T06:27:19Z","author":[{"last_name":"Pramanik","full_name":"Pramanik, Sudipta","first_name":"Sudipta"},{"first_name":"Dennis","full_name":"Milaege, Dennis","last_name":"Milaege"},{"full_name":"Hein, Maxwell","id":"52771","last_name":"Hein","orcid":"0000-0002-3732-2236","first_name":"Maxwell"},{"first_name":"Anatolii","id":"50215","full_name":"Andreiev, Anatolii","last_name":"Andreiev"},{"first_name":"Mirko","last_name":"Schaper","full_name":"Schaper, Mirko","id":"43720"},{"first_name":"Kay-Peter","last_name":"Hoyer","full_name":"Hoyer, Kay-Peter","id":"48411"}],"volume":25,"date_updated":"2023-08-16T06:29:36Z","publisher":"Wiley","doi":"10.1002/adem.202201850","title":"An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures","type":"journal_article","publication":"Advanced Engineering Materials","status":"public","user_id":"48411","department":[{"_id":"9"},{"_id":"158"}],"_id":"46507","language":[{"iso":"eng"}],"keyword":["Condensed Matter Physics","General Materials Science"]},{"doi":"10.1364/oe.487581","title":"Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology","volume":31,"date_created":"2023-08-23T07:20:06Z","author":[{"id":"44252","full_name":"Kießler, Christian","last_name":"Kießler","first_name":"Christian"},{"first_name":"Hauke","last_name":"Conradi","full_name":"Conradi, Hauke"},{"first_name":"Moritz","last_name":"Kleinert","full_name":"Kleinert, Moritz"},{"full_name":"Quiring, Viktor","last_name":"Quiring","first_name":"Viktor"},{"id":"216","full_name":"Herrmann, Harald","last_name":"Herrmann","first_name":"Harald"},{"first_name":"Christine","id":"26263","full_name":"Silberhorn, Christine","last_name":"Silberhorn"}],"date_updated":"2023-08-23T07:25:37Z","publisher":"Optica Publishing Group","intvolume":" 31","citation":{"apa":"Kießler, C., Conradi, H., Kleinert, M., Quiring, V., Herrmann, H., & Silberhorn, C. (2023). Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology. Optics Express, 31(14), Article 22685. https://doi.org/10.1364/oe.487581","bibtex":"@article{Kießler_Conradi_Kleinert_Quiring_Herrmann_Silberhorn_2023, title={Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology}, volume={31}, DOI={10.1364/oe.487581}, number={1422685}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Kießler, Christian and Conradi, Hauke and Kleinert, Moritz and Quiring, Viktor and Herrmann, Harald and Silberhorn, Christine}, year={2023} }","short":"C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, C. Silberhorn, Optics Express 31 (2023).","mla":"Kießler, Christian, et al. “Fiber-Coupled Plug-and-Play Heralded Single Photon Source Based on Ti:LiNbO3 and Polymer Technology.” Optics Express, vol. 31, no. 14, 22685, Optica Publishing Group, 2023, doi:10.1364/oe.487581.","ieee":"C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, and C. Silberhorn, “Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology,” Optics Express, vol. 31, no. 14, Art. no. 22685, 2023, doi: 10.1364/oe.487581.","chicago":"Kießler, Christian, Hauke Conradi, Moritz Kleinert, Viktor Quiring, Harald Herrmann, and Christine Silberhorn. “Fiber-Coupled Plug-and-Play Heralded Single Photon Source Based on Ti:LiNbO3 and Polymer Technology.” Optics Express 31, no. 14 (2023). https://doi.org/10.1364/oe.487581.","ama":"Kießler C, Conradi H, Kleinert M, Quiring V, Herrmann H, Silberhorn C. Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology. Optics Express. 2023;31(14). doi:10.1364/oe.487581"},"year":"2023","issue":"14","publication_identifier":{"issn":["1094-4087"]},"publication_status":"published","language":[{"iso":"eng"}],"keyword":["Atomic and Molecular Physics","and Optics"],"article_type":"original","article_number":"22685","user_id":"44252","_id":"46644","status":"public","abstract":[{"text":"A reliable, but cost-effective generation of single-photon states is key for practical quantum communication systems. For real-world deployment, waveguide sources offer optimum compatibility with fiber networks and can be embedded in hybrid integrated modules. Here, we present what we believe to be the first chip-size fully integrated fiber-coupled heralded single photon source (HSPS) module based on a hybrid integration of a nonlinear lithium niobate waveguide into a polymer board. Photon pairs at 810 nm (signal) and 1550 nm (idler) are generated via parametric down-conversion pumped at 532 nm in the LiNbO3 waveguide. The pairs are split in the polymer board and routed to separate output ports. The module has a size of (2 × 1) cm^2 and is fully fiber-coupled with one pump input fiber and two output fibers. We measure a heralded second-order correlation function of g_h(2)=0.05 with a heralding efficiency of η_h=3.5% at low pump powers","lang":"eng"}],"publication":"Optics Express","type":"journal_article"},{"abstract":[{"lang":"eng","text":"AbstractFeCo alloys are important materials used in pumps and motors in the offshore oil and gas drilling industry. These alloys are subjected to marine environments with a high NaCl concentration, therefore, corrosion and catastrophic failure are anticipated. So, the surface dissolution of additively manufactured FeCo samples is investigated in a quasi-in situ manner, in particular, the pitting corrosion in 5.0 wt pct NaCl solution. The local dissolution of the same sample region is monitored after 24, 72, and 168 hours. Here, the formation of rectangular and circular pits of ultra-fine dimensions (less than 0.5 µm) is observed with increasing immersion time. In addition, the formation of a corrosion-inhibiting surface layer is detected on the sample surface. Surface dissolution leads to a change in the surface structure, however, no change in grain shape or grain size is noticed. The surface topography after local dissolution is correlated to the grain orientation. Quasi-in situ analysis shows the preferential dissolution of high-angle grain boundaries (HAGBs) leading to a change in the fraction of HAGBs and low-angle grain boundaries fraction (LAGBs). For the FeCo sample, a potentiodynamic polarisation test reveals a corrosion potential (Ecorr) of − 0.475 V referred to the standard hydrogen electrode (SHE) and a corrosion exchange current density (icorr) of 0.0848 A/m2. Furthermore, quasi-in situ experiments showed that grains oriented along certain crystallographic directions are corroding more compared to other grains leading to a significant decrease in the local surface height. Grains with a plane normal close to the $$\\langle {1}00\\rangle$$\r\n \r\n ⟨\r\n 100\r\n ⟩\r\n \r\n direction reveal lower surface dissolution and higher corrosion resistance, whereas planes normal close to the $$\\langle {11}0\\rangle$$\r\n \r\n ⟨\r\n 110\r\n ⟩\r\n \r\n direction and the $$\\langle {111}\\rangle$$\r\n \r\n ⟨\r\n 111\r\n ⟩\r\n \r\n direction exhibit a higher surface dissolution."}],"status":"public","publication":"Metallurgical and Materials Transactions A","type":"journal_article","keyword":["Metals and Alloys","Mechanics of Materials","Condensed Matter Physics"],"language":[{"iso":"eng"}],"_id":"47122","department":[{"_id":"9"},{"_id":"158"}],"user_id":"48411","year":"2023","citation":{"ieee":"S. Pramanik, J. T. Krüger, M. Schaper, and K.-P. Hoyer, “Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution,” Metallurgical and Materials Transactions A, 2023, doi: 10.1007/s11661-023-07186-7.","chicago":"Pramanik, Sudipta, Jan Tobias Krüger, Mirko Schaper, and Kay-Peter Hoyer. “Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution.” Metallurgical and Materials Transactions A, 2023. https://doi.org/10.1007/s11661-023-07186-7.","ama":"Pramanik S, Krüger JT, Schaper M, Hoyer K-P. Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution. Metallurgical and Materials Transactions A. Published online 2023. doi:10.1007/s11661-023-07186-7","apa":"Pramanik, S., Krüger, J. T., Schaper, M., & Hoyer, K.-P. (2023). Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution. Metallurgical and Materials Transactions A. https://doi.org/10.1007/s11661-023-07186-7","mla":"Pramanik, Sudipta, et al. “Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution.” Metallurgical and Materials Transactions A, Springer Science and Business Media LLC, 2023, doi:10.1007/s11661-023-07186-7.","bibtex":"@article{Pramanik_Krüger_Schaper_Hoyer_2023, title={Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution}, DOI={10.1007/s11661-023-07186-7}, journal={Metallurgical and Materials Transactions A}, publisher={Springer Science and Business Media LLC}, author={Pramanik, Sudipta and Krüger, Jan Tobias and Schaper, Mirko and Hoyer, Kay-Peter}, year={2023} }","short":"S. Pramanik, J.T. Krüger, M. Schaper, K.-P. Hoyer, Metallurgical and Materials Transactions A (2023)."},"publication_identifier":{"issn":["1073-5623","1543-1940"]},"quality_controlled":"1","publication_status":"published","title":"Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution","doi":"10.1007/s11661-023-07186-7","date_updated":"2023-09-18T11:44:04Z","publisher":"Springer Science and Business Media LLC","author":[{"last_name":"Pramanik","full_name":"Pramanik, Sudipta","first_name":"Sudipta"},{"orcid":"0000-0002-0827-9654","last_name":"Krüger","id":"44307","full_name":"Krüger, Jan Tobias","first_name":"Jan Tobias"},{"first_name":"Mirko","full_name":"Schaper, Mirko","id":"43720","last_name":"Schaper"},{"first_name":"Kay-Peter","last_name":"Hoyer","id":"48411","full_name":"Hoyer, Kay-Peter"}],"date_created":"2023-09-18T11:43:28Z"},{"main_file_link":[{"url":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pamm.202300039","open_access":"1"}],"doi":"10.1002/pamm.202300039","title":"Transferability of a discrepancy model for the dynamics of electromagnetic oscillating circuits","author":[{"first_name":"Meike Claudia","last_name":"Wohlleben","orcid":"0009-0009-9767-7168","full_name":"Wohlleben, Meike Claudia","id":"43991"},{"first_name":"Lars","orcid":"0000-0002-2938-5616","last_name":"Muth","id":"77313","full_name":"Muth, Lars"},{"first_name":"Sebastian","last_name":"Peitz","orcid":"0000-0002-3389-793X","id":"47427","full_name":"Peitz, Sebastian"},{"first_name":"Walter","full_name":"Sextro, Walter","id":"21220","last_name":"Sextro"}],"date_created":"2023-09-06T05:18:05Z","publisher":"Wiley","date_updated":"2023-09-21T14:47:20Z","oa":"1","citation":{"apa":"Wohlleben, M. C., Muth, L., Peitz, S., & Sextro, W. (2023). Transferability of a discrepancy model for the dynamics of electromagnetic oscillating circuits. Proceedings in Applied Mathematics and Mechanics. https://doi.org/10.1002/pamm.202300039","short":"M.C. Wohlleben, L. Muth, S. Peitz, W. Sextro, in: Proceedings in Applied Mathematics and Mechanics, Wiley, 2023.","bibtex":"@inproceedings{Wohlleben_Muth_Peitz_Sextro_2023, title={Transferability of a discrepancy model for the dynamics of electromagnetic oscillating circuits}, DOI={10.1002/pamm.202300039}, booktitle={Proceedings in Applied Mathematics and Mechanics}, publisher={Wiley}, author={Wohlleben, Meike Claudia and Muth, Lars and Peitz, Sebastian and Sextro, Walter}, year={2023} }","mla":"Wohlleben, Meike Claudia, et al. “Transferability of a Discrepancy Model for the Dynamics of Electromagnetic Oscillating Circuits.” Proceedings in Applied Mathematics and Mechanics, Wiley, 2023, doi:10.1002/pamm.202300039.","ama":"Wohlleben MC, Muth L, Peitz S, Sextro W. Transferability of a discrepancy model for the dynamics of electromagnetic oscillating circuits. In: Proceedings in Applied Mathematics and Mechanics. Wiley; 2023. doi:10.1002/pamm.202300039","chicago":"Wohlleben, Meike Claudia, Lars Muth, Sebastian Peitz, and Walter Sextro. “Transferability of a Discrepancy Model for the Dynamics of Electromagnetic Oscillating Circuits.” In Proceedings in Applied Mathematics and Mechanics. Wiley, 2023. https://doi.org/10.1002/pamm.202300039.","ieee":"M. C. Wohlleben, L. Muth, S. Peitz, and W. Sextro, “Transferability of a discrepancy model for the dynamics of electromagnetic oscillating circuits,” 2023, doi: 10.1002/pamm.202300039."},"year":"2023","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["1617-7061","1617-7061"]},"language":[{"iso":"eng"}],"keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics"],"user_id":"77313","department":[{"_id":"655"},{"_id":"151"}],"_id":"46813","status":"public","abstract":[{"lang":"eng","text":"Modelling of dynamic systems plays an important role in many engineering disciplines. Two different approaches are physical modelling and data‐driven modelling, both of which have their respective advantages and disadvantages. By combining these two approaches, hybrid models can be created in which the respective disadvantages are mitigated, with discrepancy models being a particular subclass. Here, the basic system behaviour is described physically, that is, in the form of differential equations. Inaccuracies resulting from insufficient modelling or numerics lead to a discrepancy between the measurements and the model, which can be compensated by a data‐driven error correction term. Since discrepancy methods still require a large amount of measurement data, this paper investigates the extent to which a single discrepancy model can be trained for a physical model with additional parameter dependencies without the need for retraining. As an example, a damped electromagnetic oscillating circuit is used. The physical model is realised by a differential equation describing the electric current, considering only inductance and capacitance; dissipation due to resistance is neglected. This creates a discrepancy between measurement and model, which is corrected by a data‐driven model. In the experiments, the inductance and the capacity are varied. It is found that the same data‐driven model can only be used if additional parametric dependencies in the data‐driven term are considered as well."}],"type":"conference","publication":"Proceedings in Applied Mathematics and Mechanics"},{"doi":"10.3390/cryst13020157","volume":13,"author":[{"last_name":"Gnaase","id":"25730","full_name":"Gnaase, Stefan","first_name":"Stefan"},{"id":"77214","full_name":"Niggemeyer, Dennis","last_name":"Niggemeyer","first_name":"Dennis"},{"first_name":"Dennis","last_name":"Lehnert","id":"90491","full_name":"Lehnert, Dennis"},{"full_name":"Bödger, Christian","id":"93904","last_name":"Bödger","first_name":"Christian"},{"first_name":"Thomas","full_name":"Tröster, Thomas","id":"553","last_name":"Tröster"}],"date_updated":"2025-03-18T12:45:57Z","intvolume":" 13","citation":{"mla":"Gnaase, Stefan, et al. “Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709.” Crystals, vol. 13, no. 2, 157, MDPI AG, 2023, doi:10.3390/cryst13020157.","bibtex":"@article{Gnaase_Niggemeyer_Lehnert_Bödger_Tröster_2023, title={Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709}, volume={13}, DOI={10.3390/cryst13020157}, number={2157}, journal={Crystals}, publisher={MDPI AG}, author={Gnaase, Stefan and Niggemeyer, Dennis and Lehnert, Dennis and Bödger, Christian and Tröster, Thomas}, year={2023} }","short":"S. Gnaase, D. Niggemeyer, D. Lehnert, C. Bödger, T. Tröster, Crystals 13 (2023).","apa":"Gnaase, S., Niggemeyer, D., Lehnert, D., Bödger, C., & Tröster, T. (2023). Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709. Crystals, 13(2), Article 157. https://doi.org/10.3390/cryst13020157","ieee":"S. Gnaase, D. Niggemeyer, D. Lehnert, C. Bödger, and T. Tröster, “Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709,” Crystals, vol. 13, no. 2, Art. no. 157, 2023, doi: 10.3390/cryst13020157.","chicago":"Gnaase, Stefan, Dennis Niggemeyer, Dennis Lehnert, Christian Bödger, and Thomas Tröster. “Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709.” Crystals 13, no. 2 (2023). https://doi.org/10.3390/cryst13020157.","ama":"Gnaase S, Niggemeyer D, Lehnert D, Bödger C, Tröster T. Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709. Crystals. 2023;13(2). doi:10.3390/cryst13020157"},"publication_identifier":{"issn":["2073-4352"]},"publication_status":"published","file_date_updated":"2024-11-22T15:55:07Z","article_type":"original","article_number":"157","department":[{"_id":"149"},{"_id":"9"},{"_id":"321"}],"user_id":"90491","_id":"37200","status":"public","type":"journal_article","title":"Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD & L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709","date_created":"2023-01-18T05:44:59Z","publisher":"MDPI AG","year":"2023","issue":"2","quality_controlled":"1","language":[{"iso":"eng"}],"keyword":["Inorganic Chemistry","Condensed Matter Physics","General Materials Science","General Chemical Engineering"],"ddc":["670"],"file":[{"file_size":5838834,"access_level":"closed","file_id":"57334","file_name":"crystals-13-00157.pdf","date_updated":"2024-11-22T15:55:07Z","date_created":"2024-11-22T15:55:07Z","creator":"cboedger","success":1,"relation":"main_file","content_type":"application/pdf"}],"abstract":[{"text":"(1) This work answers the question of whether and to what extent there is a significant difference in mechanical properties when different additive manufacturing processes are applied to the material 1.2709. The Laser-Powder-Bed-Fusion (L-PBF) and Laser-Metal-Deposition (LMD) processes are considered, as they differ fundamentally in the way a part is manufactured. (2) Known process parameters for low-porosity parts were used to fabricate tensile strength specimens. Half of the specimens were heat-treated, and all specimens were tested for mechanical properties in a quasi-static tensile test. In addition, the material hardness was determined. (3) It was found that, firstly, heat treatment resulted in a sharp increase in mechanical properties such as hardness, elastic modulus, yield strength and ultimate strength. In addition to the increase in these properties, the elongation at break also decreases significantly after heat treatment. The choice of process, on the other hand, does not give either process a clear advantage in terms of mechanical properties but shows that it is necessary to consider the essential mechanical properties for a desired application.","lang":"eng"}],"publication":"Crystals"}]