[{"place":"Millersville","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"138","name":"TRR 285 – A04: TRR 285 - Subproject A04"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C02: TRR 285 - Subproject C02","_id":"146"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"quality_controlled":"1","citation":{"chicago":"Lüder, Stephan, Pia Katharina Holtkamp, Simon Wituschek, Mathias Bobbert, Gerson Meschut, Michael Lechner, and Hans Christian Schmale. “Analysis of the Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.” In <i>Materials Research Proceedings</i>, edited by Gerson Meschut, Mathias Bobbert, Joost Duflou, Livan Fratini, Hinnerk Hagenah, Paulo A. F. Martins, Marion Merklein, and Fabrizio Micari, 52:101–8. Sheet Metal 2025. Millersville: Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903551-13\">https://doi.org/10.21741/9781644903551-13</a>.","short":"S. Lüder, P.K. Holtkamp, S. Wituschek, M. Bobbert, G. Meschut, M. Lechner, H.C. Schmale, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P.A.F. Martins, M. Merklein, F. Micari (Eds.), Materials Research Proceedings, Materials Research Forum LLC, Millersville, 2025, pp. 101–108.","ieee":"S. Lüder <i>et al.</i>, “Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting,” in <i>Materials Research Proceedings</i>, Paderborn, 2025, vol. 52, pp. 101–108, doi: <a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>.","apa":"Lüder, S., Holtkamp, P. K., Wituschek, S., Bobbert, M., Meschut, G., Lechner, M., &#38; Schmale, H. C. (2025). Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting. In G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. A. F. Martins, M. Merklein, &#38; F. Micari (Eds.), <i>Materials Research Proceedings</i> (Vol. 52, pp. 101–108). Materials Research Forum LLC. <a href=\"https://doi.org/10.21741/9781644903551-13\">https://doi.org/10.21741/9781644903551-13</a>","bibtex":"@inproceedings{Lüder_Holtkamp_Wituschek_Bobbert_Meschut_Lechner_Schmale_2025, place={Millersville}, series={Sheet Metal 2025}, title={Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting}, volume={52}, DOI={<a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Lüder, Stephan and Holtkamp, Pia Katharina and Wituschek, Simon and Bobbert, Mathias and Meschut, Gerson and Lechner, Michael and Schmale, Hans Christian}, editor={Meschut, Gerson and Bobbert, Mathias and Duflou, Joost and Fratini, Livan and Hagenah, Hinnerk and Martins, Paulo A. F. and Merklein, Marion and Micari, Fabrizio}, year={2025}, pages={101–108}, collection={Sheet Metal 2025} }","ama":"Lüder S, Holtkamp PK, Wituschek S, et al. Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting. In: Meschut G, Bobbert M, Duflou J, et al., eds. <i>Materials Research Proceedings</i>. Vol 52. Sheet Metal 2025. Materials Research Forum LLC; 2025:101-108. doi:<a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>","mla":"Lüder, Stephan, et al. “Analysis of the Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.” <i>Materials Research Proceedings</i>, edited by Gerson Meschut et al., vol. 52, Materials Research Forum LLC, 2025, pp. 101–08, doi:<a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>."},"volume":52,"editor":[{"last_name":"Meschut","first_name":"Gerson","full_name":"Meschut, Gerson"},{"last_name":"Bobbert","first_name":"Mathias","full_name":"Bobbert, Mathias"},{"full_name":"Duflou, Joost","first_name":"Joost","last_name":"Duflou"},{"first_name":"Livan","last_name":"Fratini","full_name":"Fratini, Livan"},{"full_name":"Hagenah, Hinnerk","first_name":"Hinnerk","last_name":"Hagenah"},{"full_name":"Martins, Paulo A. F.","first_name":"Paulo A. F.","last_name":"Martins"},{"full_name":"Merklein, Marion","first_name":"Marion","last_name":"Merklein"},{"full_name":"Micari, Fabrizio","last_name":"Micari","first_name":"Fabrizio"}],"user_id":"7850","publisher":"Materials Research Forum LLC","_id":"60290","page":"101 - 108","conference":{"start_date":"2025-04-01","name":"21st International Conference on Sheet Metal","location":"Paderborn","end_date":"2025-04-03"},"status":"public","department":[{"_id":"630"},{"_id":"43"},{"_id":"157"}],"type":"conference","keyword":["Joining","Self-Piercing Riveting","Sheet Metal"],"date_created":"2025-06-20T10:13:22Z","extern":"1","abstract":[{"text":"The constantly increasing demand for climate protection and resource conservation requires innovative and versatile joining processes that improve adaptability to the joining task and robustness to enable flexible manufacturing on a production line. Therefore, the versatile SPR (V-SPR) and tumbling SPR (T-SPR) were developed. Using the example of a mixed material combination HCT590X+Z (t0 = 1.0 mm) / EN AW-6014 T4 (t0 = 2.0 mm), these processes were examined and compared with regard to the binding mechanisms form closure and force closure using micrographs, non-destructive resistance measurements and destructive torsion tests. For this purpose, a new sample geometry was defined, and the methods were adapted to the SPR process variants.</jats:p>","lang":"eng"}],"publication":"Materials Research Proceedings","doi":"10.21741/9781644903551-13","language":[{"iso":"eng"}],"series_title":"Sheet Metal 2025","intvolume":"        52","publication_status":"published","date_updated":"2026-05-12T12:12:36Z","author":[{"full_name":"Lüder, Stephan","first_name":"Stephan","last_name":"Lüder"},{"id":"44935","last_name":"Holtkamp","first_name":"Pia Katharina","full_name":"Holtkamp, Pia Katharina"},{"last_name":"Wituschek","first_name":"Simon","full_name":"Wituschek, Simon"},{"id":"7850","first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias"},{"id":"32056","full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","first_name":"Gerson"},{"full_name":"Lechner, Michael","first_name":"Michael","last_name":"Lechner"},{"first_name":"Hans Christian","last_name":"Schmale","full_name":"Schmale, Hans Christian"}],"publication_identifier":{"issn":["2474-395X"]},"year":"2025","title":"Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting"},{"user_id":"7850","volume":16,"publisher":"MDPI AG","_id":"63662","status":"public","quality_controlled":"1","project":[{"_id":"132","name":"TRR 285 - Project Area B"},{"name":"TRR 285 - Subproject B04","_id":"143"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"citation":{"chicago":"Krome, Sven, Tobias Duffe, Gunter Kullmer, Britta Schramm, and Richard Ostwald. “Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D.” <i>Applied Sciences</i> 16, no. 1 (2025). <a href=\"https://doi.org/10.3390/app16010384\">https://doi.org/10.3390/app16010384</a>.","short":"S. Krome, T. Duffe, G. Kullmer, B. Schramm, R. Ostwald, Applied Sciences 16 (2025).","apa":"Krome, S., Duffe, T., Kullmer, G., Schramm, B., &#38; Ostwald, R. (2025). Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D. <i>Applied Sciences</i>, <i>16</i>(1), Article 384. <a href=\"https://doi.org/10.3390/app16010384\">https://doi.org/10.3390/app16010384</a>","ieee":"S. Krome, T. Duffe, G. Kullmer, B. Schramm, and R. Ostwald, “Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D,” <i>Applied Sciences</i>, vol. 16, no. 1, Art. no. 384, 2025, doi: <a href=\"https://doi.org/10.3390/app16010384\">10.3390/app16010384</a>.","ama":"Krome S, Duffe T, Kullmer G, Schramm B, Ostwald R. Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D. <i>Applied Sciences</i>. 2025;16(1). doi:<a href=\"https://doi.org/10.3390/app16010384\">10.3390/app16010384</a>","bibtex":"@article{Krome_Duffe_Kullmer_Schramm_Ostwald_2025, title={Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D}, volume={16}, DOI={<a href=\"https://doi.org/10.3390/app16010384\">10.3390/app16010384</a>}, number={1384}, journal={Applied Sciences}, publisher={MDPI AG}, author={Krome, Sven and Duffe, Tobias and Kullmer, Gunter and Schramm, Britta and Ostwald, Richard}, year={2025} }","mla":"Krome, Sven, et al. “Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D.” <i>Applied Sciences</i>, vol. 16, no. 1, 384, MDPI AG, 2025, doi:<a href=\"https://doi.org/10.3390/app16010384\">10.3390/app16010384</a>."},"doi":"10.3390/app16010384","article_number":"384","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2026-05-12T12:46:22Z","intvolume":"        16","title":"Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D","year":"2025","author":[{"full_name":"Krome, Sven","first_name":"Sven","last_name":"Krome","id":"57245"},{"last_name":"Duffe","first_name":"Tobias","full_name":"Duffe, Tobias","id":"41322"},{"first_name":"Gunter","last_name":"Kullmer","full_name":"Kullmer, Gunter","id":"291"},{"id":"4668","full_name":"Schramm, Britta","first_name":"Britta","last_name":"Schramm"},{"id":"106876","last_name":"Ostwald","orcid":"0000-0003-2147-8444","first_name":"Richard","full_name":"Ostwald, Richard"}],"publication_identifier":{"issn":["2076-3417"]},"type":"journal_article","department":[{"_id":"9"},{"_id":"952"},{"_id":"321"}],"date_created":"2026-01-20T08:47:40Z","abstract":[{"text":"The accurate prediction of crack initiation and propagation is essential for assessing the structural integrity of mechanically joined components and other complex assemblies. To overcome the limitations of existing finite element tools, a modular Python framework has been developed to automate three-dimensional crack growth simulations. The program combines geometric reconstruction, adaptive remeshing, and the numerical evaluation of fracture mechanics parameters within a single, fully automated workflow. The framework builds on open-source components and remains solver-independent, enabling straightforward integration with commercial or research finite element codes. A dedicated sequence of modules performs all required steps, from mesh separation and crack insertion to local submodeling, stress and displacement mapping, and iterative crack-front update, without manual interaction. The methodology was verified using a mini-compact tension (Mini-CT) specimen as a benchmark case. The numerical results demonstrate the accurate reproduction of stress intensity factors and energy release rates while achieving high computational efficiency through localized refinement. The developed approach provides a robust basis for crack growth simulations of geometrically complex or residual stress-affected structures. Its high degree of automation and flexibility makes it particularly suited for analyzing cracks in clinched and riveted joints, supporting the predictive design and durability assessment of joined lightweight structures.","lang":"eng"}],"publication":"Applied Sciences","issue":"1"},{"abstract":[{"lang":"eng","text":"The effect of corrosion on mechanically joined components is not well understood. While recent research shows that a brief exposure of clinched specimens to a salt spray environment improves the specimens’ fatigue life, other research shows a decrease in load bearing capabilities with increasing corrosion times. These studies primarily focus on galvanic corrosion. It is not entirely clear how other corrosion phenomena, such as pitting corrosion, affect the fatigue life of clinched joints. In this work, a numerical model is used, which is able to simulate corrosion pit growth in EN AW-6014. The experimental polarization data of EN AW-6014 are used directly in the calculation of the interface kinetics parameter of the model."}],"project":[{"name":"TRR 285 - Subproject B02","_id":"141"},{"_id":"142","name":"TRR 285 - Subproject B03"},{"name":"TRR 285 - Project Area B","_id":"132"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"publication":"Acta Mechanica","citation":{"short":"S. Harzheim, C. Chen, K. Hollmer, M. Hofmann, M. Zimmermann, T. Wallmersperger, Acta Mechanica (2025).","ama":"Harzheim S, Chen C, Hollmer K, Hofmann M, Zimmermann M, Wallmersperger T. Numerical investigation of pitting corrosion in clinched joints. <i>Acta Mechanica</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1007/s00707-025-04248-2\">10.1007/s00707-025-04248-2</a>","chicago":"Harzheim, Sven, Chin Chen, Katharina Hollmer, Martin Hofmann, Martina Zimmermann, and Thomas Wallmersperger. “Numerical Investigation of Pitting Corrosion in Clinched Joints.” <i>Acta Mechanica</i>, 2025. <a href=\"https://doi.org/10.1007/s00707-025-04248-2\">https://doi.org/10.1007/s00707-025-04248-2</a>.","bibtex":"@article{Harzheim_Chen_Hollmer_Hofmann_Zimmermann_Wallmersperger_2025, title={Numerical investigation of pitting corrosion in clinched joints}, DOI={<a href=\"https://doi.org/10.1007/s00707-025-04248-2\">10.1007/s00707-025-04248-2</a>}, journal={Acta Mechanica}, publisher={Springer Science and Business Media LLC}, author={Harzheim, Sven and Chen, Chin and Hollmer, Katharina and Hofmann, Martin and Zimmermann, Martina and Wallmersperger, Thomas}, year={2025} }","apa":"Harzheim, S., Chen, C., Hollmer, K., Hofmann, M., Zimmermann, M., &#38; Wallmersperger, T. (2025). Numerical investigation of pitting corrosion in clinched joints. <i>Acta Mechanica</i>. <a href=\"https://doi.org/10.1007/s00707-025-04248-2\">https://doi.org/10.1007/s00707-025-04248-2</a>","mla":"Harzheim, Sven, et al. “Numerical Investigation of Pitting Corrosion in Clinched Joints.” <i>Acta Mechanica</i>, Springer Science and Business Media LLC, 2025, doi:<a href=\"https://doi.org/10.1007/s00707-025-04248-2\">10.1007/s00707-025-04248-2</a>.","ieee":"S. Harzheim, C. Chen, K. Hollmer, M. Hofmann, M. Zimmermann, and T. Wallmersperger, “Numerical investigation of pitting corrosion in clinched joints,” <i>Acta Mechanica</i>, 2025, doi: <a href=\"https://doi.org/10.1007/s00707-025-04248-2\">10.1007/s00707-025-04248-2</a>."},"type":"journal_article","date_created":"2025-10-13T15:17:35Z","publication_status":"published","date_updated":"2026-05-12T12:56:55Z","status":"public","title":"Numerical investigation of pitting corrosion in clinched joints","year":"2025","publication_identifier":{"issn":["0001-5970","1619-6937"]},"author":[{"last_name":"Harzheim","first_name":"Sven","full_name":"Harzheim, Sven"},{"full_name":"Chen, Chin","first_name":"Chin","last_name":"Chen"},{"full_name":"Hollmer, Katharina","first_name":"Katharina","last_name":"Hollmer"},{"first_name":"Martin","last_name":"Hofmann","full_name":"Hofmann, Martin"},{"first_name":"Martina","last_name":"Zimmermann","full_name":"Zimmermann, Martina"},{"full_name":"Wallmersperger, Thomas","last_name":"Wallmersperger","first_name":"Thomas"}],"user_id":"7850","doi":"10.1007/s00707-025-04248-2","_id":"61822","publisher":"Springer Science and Business Media LLC","language":[{"iso":"eng"}]},{"project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A04: TRR 285 - Subproject A04","_id":"138"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"name":"TRR 285 – B01: TRR 285 - Subproject B01","_id":"140"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"quality_controlled":"1","citation":{"ama":"Lüder S, Wolf E, Schmale HC, Brosius A. Investigation of the impact of a rotationally superimposed punch stroke on the binding mechanisms of a clinched joint. In: <i>MATEC Web of Conferences</i>. Vol 408. EDP Sciences; 2025. doi:<a href=\"https://doi.org/10.1051/matecconf/202540801086\">10.1051/matecconf/202540801086</a>","bibtex":"@inproceedings{Lüder_Wolf_Schmale_Brosius_2025, title={Investigation of the impact of a rotationally superimposed punch stroke on the binding mechanisms of a clinched joint}, volume={408}, DOI={<a href=\"https://doi.org/10.1051/matecconf/202540801086\">10.1051/matecconf/202540801086</a>}, number={01086}, booktitle={MATEC Web of Conferences}, publisher={EDP Sciences}, author={Lüder, Stephan and Wolf, Eugen and Schmale, Hans Christian and Brosius, Alexander}, year={2025} }","mla":"Lüder, Stephan, et al. “Investigation of the Impact of a Rotationally Superimposed Punch Stroke on the Binding Mechanisms of a Clinched Joint.” <i>MATEC Web of Conferences</i>, vol. 408, 01086, EDP Sciences, 2025, doi:<a href=\"https://doi.org/10.1051/matecconf/202540801086\">10.1051/matecconf/202540801086</a>.","chicago":"Lüder, Stephan, Eugen Wolf, Hans Christian Schmale, and Alexander Brosius. “Investigation of the Impact of a Rotationally Superimposed Punch Stroke on the Binding Mechanisms of a Clinched Joint.” In <i>MATEC Web of Conferences</i>, Vol. 408. EDP Sciences, 2025. <a href=\"https://doi.org/10.1051/matecconf/202540801086\">https://doi.org/10.1051/matecconf/202540801086</a>.","short":"S. Lüder, E. Wolf, H.C. Schmale, A. Brosius, in: MATEC Web of Conferences, EDP Sciences, 2025.","apa":"Lüder, S., Wolf, E., Schmale, H. C., &#38; Brosius, A. (2025). Investigation of the impact of a rotationally superimposed punch stroke on the binding mechanisms of a clinched joint. <i>MATEC Web of Conferences</i>, <i>408</i>, Article 01086. <a href=\"https://doi.org/10.1051/matecconf/202540801086\">https://doi.org/10.1051/matecconf/202540801086</a>","ieee":"S. Lüder, E. Wolf, H. C. Schmale, and A. Brosius, “Investigation of the impact of a rotationally superimposed punch stroke on the binding mechanisms of a clinched joint,” in <i>MATEC Web of Conferences</i>, Lisbon, 2025, vol. 408, doi: <a href=\"https://doi.org/10.1051/matecconf/202540801086\">10.1051/matecconf/202540801086</a>."},"conference":{"start_date":"2025-06-01","name":"44th Conference of the International Deep Drawing Research Group (IDDRG 2025) ","location":"Lisbon","end_date":"2025-06-05"},"status":"public","volume":408,"user_id":"7850","publisher":"EDP Sciences","_id":"60285","abstract":[{"text":"This paper examines the impact of a rotationally superimposed punch stroke on the binding mechanisms of clinched joints of aluminum sheets. As part of the development of a method for ensuring the versatility of clinching, an additional rotational movement of the punch was introduced as a control variable to influence friction in the mechanical joining process. The effect of rotational superimposition on the force-displacement curve of the clinching processes was investigated using four test variants with different kinematics. The primary objective was to evaluate the binding mechanisms that maintain the integrity of the clinched joint. To evaluate the force closure of the resulting joint, two testing methods were employed throughout the course of the research, non-destructive resistance measurement using four-wire sensing method and destructive torsion testing. A crucial factor influencing the efficacy of the process is surface cleanliness, as contaminants between joining partners can impede the effectiveness of the clinched joint. Therefore, all specimens were meticulously cleaned prior to experimentation. This method exhibits promising potential in creating clinched joints that align with the demands of flexible manufacturing environments.</jats:p>","lang":"eng"}],"extern":"1","publication":"MATEC Web of Conferences","department":[{"_id":"630"}],"keyword":["Joining","Sheet Metal","Tribology","Clinching"],"type":"conference","date_created":"2025-06-20T06:57:16Z","intvolume":"       408","date_updated":"2026-05-12T13:08:56Z","publication_status":"published","publication_identifier":{"issn":["2261-236X"]},"author":[{"last_name":"Lüder","first_name":"Stephan","full_name":"Lüder, Stephan"},{"last_name":"Wolf","first_name":"Eugen","full_name":"Wolf, Eugen"},{"last_name":"Schmale","first_name":"Hans Christian","full_name":"Schmale, Hans Christian"},{"first_name":"Alexander","last_name":"Brosius","full_name":"Brosius, Alexander"}],"title":"Investigation of the impact of a rotationally superimposed punch stroke on the binding mechanisms of a clinched joint","year":"2025","doi":"10.1051/matecconf/202540801086","language":[{"iso":"eng"}],"article_number":"01086"},{"volume":"2/2025","user_id":"111362","language":[{"iso":"ger"}],"_id":"62172","publisher":"Aschendorff","page":"88–89.","date_updated":"2026-05-12T13:41:38Z","publication_status":"published","publication_identifier":{"issn":["1864-9483"]},"author":[{"orcid":"0009-0005-6980-2727","first_name":"Stephan Matthias","last_name":"Kokew","full_name":"Kokew, Stephan Matthias","id":"111362"},{"last_name":"Al-Daghistani","first_name":"Raid","full_name":"Al-Daghistani, Raid"}],"year":"2025","status":"public","title":"Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven","department":[{"_id":"469"}],"type":"journal_article","date_created":"2025-11-12T21:25:04Z","citation":{"apa":"Kokew, S. M., &#38; Al-Daghistani, R. (2025). Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven. <i>Cibedo-Beiträge</i>, <i>2/2025</i>, 88–89.","ieee":"S. M. Kokew and R. Al-Daghistani, “Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven,” <i>Cibedo-Beiträge</i>, vol. 2/2025, pp. 88–89., 2025.","short":"S.M. Kokew, R. Al-Daghistani, Cibedo-Beiträge 2/2025 (2025) 88–89.","chicago":"Kokew, Stephan Matthias, and Raid Al-Daghistani. “Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven.” <i>Cibedo-Beiträge</i> 2/2025 (2025): 88–89.","mla":"Kokew, Stephan Matthias, and Raid Al-Daghistani. “Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven.” <i>Cibedo-Beiträge</i>, vol. 2/2025, Aschendorff, 2025, pp. 88–89.","ama":"Kokew SM, Al-Daghistani R. Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven. <i>Cibedo-Beiträge</i>. 2025;2/2025:88–89.","bibtex":"@article{Kokew_Al-Daghistani_2025, title={Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven}, volume={2/2025}, journal={Cibedo-Beiträge}, publisher={Aschendorff}, author={Kokew, Stephan Matthias and Al-Daghistani, Raid}, year={2025}, pages={88–89.} }"},"publication":"Cibedo-Beiträge","popular_science":"1"},{"publisher":"Schulverwaltungsblatt für Niedersachsen 5, 301-302","_id":"61940","language":[{"iso":"eng"}],"user_id":"43976","year":"2025","title":"Innovationen im Kerncurriculum Spanisch : Lexiko-Grammatik im Fokus","status":"public","author":[{"id":"58448","first_name":"Christoph","last_name":"Bürgel","full_name":"Bürgel, Christoph"}],"date_updated":"2026-05-13T08:31:58Z","date_created":"2025-10-23T13:07:30Z","type":"journal_article","publication":"Niedersächsi-        sches Kultusministerium (Hrsg.)","citation":{"chicago":"Bürgel, Christoph. “Innovationen Im Kerncurriculum Spanisch : Lexiko-Grammatik Im Fokus.” <i>Niedersächsi-        Sches Kultusministerium (Hrsg.)</i>, 2025.","short":"C. Bürgel, Niedersächsi-        Sches Kultusministerium (Hrsg.) (2025).","apa":"Bürgel, C. (2025). Innovationen im Kerncurriculum Spanisch : Lexiko-Grammatik im Fokus. <i>Niedersächsi-        Sches Kultusministerium (Hrsg.)</i>.","ieee":"C. Bürgel, “Innovationen im Kerncurriculum Spanisch : Lexiko-Grammatik im Fokus,” <i>Niedersächsi-        sches Kultusministerium (Hrsg.)</i>, 2025.","ama":"Bürgel C. Innovationen im Kerncurriculum Spanisch : Lexiko-Grammatik im Fokus. <i>Niedersächsi-        sches Kultusministerium (Hrsg)</i>. Published online 2025.","bibtex":"@article{Bürgel_2025, title={Innovationen im Kerncurriculum Spanisch : Lexiko-Grammatik im Fokus}, journal={Niedersächsi-        sches Kultusministerium (Hrsg.)}, publisher={Schulverwaltungsblatt für Niedersachsen 5, 301-302}, author={Bürgel, Christoph}, year={2025} }","mla":"Bürgel, Christoph. “Innovationen Im Kerncurriculum Spanisch : Lexiko-Grammatik Im Fokus.” <i>Niedersächsi-        Sches Kultusministerium (Hrsg.)</i>, Schulverwaltungsblatt für Niedersachsen 5, 301-302, 2025."}},{"publication":"Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog ","citation":{"ama":"Bürgel C, Inal B. Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog . <i>Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog </i>. Published online 2025.","bibtex":"@article{Bürgel_Inal_2025, title={Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog }, journal={Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog }, publisher={Tübingen: Narr}, author={Bürgel, Christoph and Inal, Benjamin}, year={2025} }","mla":"Bürgel, Christoph, and Benjamin Inal. “Fremdsprachenlehren Und -Lernen Im Spannungsfeld von Digital Und Analog .” <i>Fremdsprachenlehren Und -Lernen Im Spannungsfeld von Digital Und Analog </i>, Tübingen: Narr, 2025.","short":"C. Bürgel, B. Inal, Fremdsprachenlehren Und -Lernen Im Spannungsfeld von Digital Und Analog  (2025).","chicago":"Bürgel, Christoph, and Benjamin Inal. “Fremdsprachenlehren Und -Lernen Im Spannungsfeld von Digital Und Analog .” <i>Fremdsprachenlehren Und -Lernen Im Spannungsfeld von Digital Und Analog </i>, 2025.","apa":"Bürgel, C., &#38; Inal, B. (2025). Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog . <i>Fremdsprachenlehren Und -Lernen Im Spannungsfeld von Digital Und Analog </i>.","ieee":"C. Bürgel and B. Inal, “Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog ,” <i>Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog </i>, 2025."},"type":"journal_article","date_created":"2025-10-23T12:58:33Z","date_updated":"2026-05-13T08:32:10Z","year":"2025","title":"Fremdsprachenlehren und -lernen im Spannungsfeld von digital und analog ","status":"public","author":[{"last_name":"Bürgel","first_name":"Christoph","full_name":"Bürgel, Christoph","id":"58448"},{"full_name":"Inal, Benjamin","first_name":"Benjamin","last_name":"Inal"}],"user_id":"43976","_id":"61937","language":[{"iso":"eng"}],"publisher":"Tübingen: Narr"},{"editor":[{"full_name":"Bürgel, Christoph","last_name":"Bürgel","first_name":"Christoph"}],"user_id":"43976","_id":"61038","language":[{"iso":"eng"}],"page":"16-22","date_updated":"2026-05-13T08:32:55Z","translator":[{"full_name":"Bürgel, Christoph","first_name":"Christoph","last_name":"Bürgel","id":"58448"}],"author":[{"full_name":"Bürgel, Christoph","first_name":"Christoph","last_name":"Bürgel"}],"year":"2025","title":"Unidades fraseológicas - ¿qué si no? Phraseologische Sprachbewusstheit entwickeln, in: Der Fremdsprachliche Unterricht Spanisch","status":"public","type":"translation_chapter","date_created":"2025-08-27T09:45:46Z","citation":{"chicago":"Bürgel, Christoph. “Unidades Fraseológicas - ¿qué Si No? Phraseologische Sprachbewusstheit Entwickeln, in: Der Fremdsprachliche Unterricht Spanisch.” edited and translated by Christoph Bürgel, 16–22, 2025.","short":"C. Bürgel, in: C. Bürgel (Ed.), 2025, pp. 16–22.","ieee":"C. Bürgel, “Unidades fraseológicas - ¿qué si no? Phraseologische Sprachbewusstheit entwickeln, in: Der Fremdsprachliche Unterricht Spanisch,” no. 89, C. Bürgel, Ed. 2025, pp. 16–22.","apa":"Bürgel, C. (2025). <i>Unidades fraseológicas - ¿qué si no? Phraseologische Sprachbewusstheit entwickeln, in: Der Fremdsprachliche Unterricht Spanisch</i> (C. Bürgel, Ed. &#38; Trans.; Issue 89, pp. 16–22).","bibtex":"@inbook{Bürgel_2025, title={Unidades fraseológicas - ¿qué si no? Phraseologische Sprachbewusstheit entwickeln, in: Der Fremdsprachliche Unterricht Spanisch}, number={89}, author={Bürgel, Christoph}, editor={Bürgel, Christoph, Bürgel, Christoph}, year={2025}, pages={16–22} }","ama":"Bürgel C. Unidades fraseológicas - ¿qué si no? Phraseologische Sprachbewusstheit entwickeln, in: Der Fremdsprachliche Unterricht Spanisch. In: Bürgel C, ed. ; 2025:16-22.","mla":"Bürgel, Christoph. <i>Unidades Fraseológicas - ¿qué Si No? Phraseologische Sprachbewusstheit Entwickeln, in: Der Fremdsprachliche Unterricht Spanisch</i>. Edited by Christoph Bürgel, Translated by Christoph Bürgel, no. 89, 2025, pp. 16–22."},"issue":"89"},{"user_id":"43976","language":[{"iso":"eng"}],"_id":"59238","date_updated":"2026-05-13T08:34:39Z","title":"Förderung der mündlichen Sprachproduktion im Fremdsprachenunterricht. Perspektiven aus Wissenschaft und Praxis, in: bzf 69, 85-88.","status":"public","year":"2025","author":[{"full_name":"Bürgel, Christoph","first_name":"Christoph","last_name":"Bürgel","id":"58448"},{"first_name":"Claudia ","last_name":"Schlaak","full_name":"Schlaak, Claudia "},{"full_name":"Willems, Aline","first_name":"Aline","last_name":"Willems"}],"type":"review","date_created":"2025-04-02T08:53:03Z","citation":{"chicago":"Bürgel, Christoph, Claudia  Schlaak, and Aline Willems. “Förderung Der Mündlichen Sprachproduktion Im Fremdsprachenunterricht. Perspektiven Aus Wissenschaft Und Praxis, in: Bzf 69, 85-88.,” 2025.","short":"C. Bürgel, C. Schlaak, A. Willems, (2025).","apa":"Bürgel, C., Schlaak, C., &#38; Willems, A. (2025). <i>Förderung der mündlichen Sprachproduktion im Fremdsprachenunterricht. Perspektiven aus Wissenschaft und Praxis, in: bzf 69, 85-88.</i>","ieee":"C. Bürgel, C. Schlaak, and A. Willems, “Förderung der mündlichen Sprachproduktion im Fremdsprachenunterricht. 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Perspektiven Aus Wissenschaft Und Praxis, in: Bzf 69, 85-88.</i> 2025."}},{"language":[{"iso":"eng"}],"_id":"61035","user_id":"43976","publication_date":"02.01.2025","author":[{"id":"58448","first_name":"Christoph","last_name":"Bürgel","full_name":"Bürgel, Christoph"},{"full_name":"Siepmann, Dirk","last_name":"Siepmann","first_name":"Dirk"}],"title":"-\tDigitalisierung als Wunderwaffe ","year":"2025","status":"public","date_updated":"2026-05-13T08:33:13Z","date_created":"2025-08-27T09:41:21Z","type":"newspaper_article","citation":{"apa":"Bürgel, C., &#38; Siepmann, D. (2025). -\tDigitalisierung als Wunderwaffe . <i>FAZ</i>.","ieee":"C. Bürgel and D. Siepmann, “-\tDigitalisierung als Wunderwaffe ,” <i>FAZ</i>, 2025.","chicago":"Bürgel, Christoph, and Dirk Siepmann. “-\tDigitalisierung Als Wunderwaffe .” <i>FAZ</i>, 2025.","short":"C. Bürgel, D. 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Stuttgart: ibidem , 2025."},"issue":"1","publication":"\tZeitschrift für Romanische Sprachen und ihre Didaktik","_id":"59818","language":[{"iso":"eng"}],"publisher":" Stuttgart: ibidem ","main_file_link":[{"url":"Paderborn"}],"volume":19,"editor":[{"id":"58448","last_name":"Bürgel","first_name":"Christoph","full_name":"Bürgel, Christoph"},{"full_name":"Heiderich, Jens","first_name":"Jens","last_name":"Heiderich"},{"full_name":"Koch, Corinna","first_name":"Corinna","last_name":"Koch"},{"full_name":"Schlaak, Claudia","first_name":"Claudia","last_name":"Schlaak"},{"first_name":"Judith","last_name":"Visser","full_name":"Visser, Judith"}],"user_id":"43976","year":"2025","title":"\tZeitschrift für Romanische Sprachen und ihre Didaktik,","status":"public","intvolume":"        19","date_updated":"2026-05-13T09:27:34Z"},{"conference":{"name":"The International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies 2025 (HEART 2025) ","start_date":"2025-05-26","location":"Kumamoto, Japan","end_date":"2025-05-28"},"author":[{"full_name":"Pape, Gerrit","last_name":"Pape","first_name":"Gerrit"},{"id":"62900","full_name":"Wintermann, Bjarne","first_name":"Bjarne","last_name":"Wintermann","orcid":"0009-0000-0856-6250"},{"full_name":"Jungemann, Linus","orcid":"0009-0003-9757-988X","last_name":"Jungemann","first_name":"Linus","id":"67601"},{"first_name":"Michael","last_name":"Lass","full_name":"Lass, Michael"},{"full_name":"Meyer, Marius","last_name":"Meyer","first_name":"Marius"},{"id":"8961","last_name":"Riebler","first_name":"Heinrich","full_name":"Riebler, Heinrich"},{"full_name":"Plessl, Christian","last_name":"Plessl","orcid":"0000-0001-5728-9982","first_name":"Christian","id":"16153"}],"status":"public","title":"AuroraFlow, an Easy-to-Use, Low-Latency FPGA Communication Solution Demonstrated on Multi-FPGA Neural Network Inference","year":"2025","date_updated":"2026-05-13T09:46:42Z","publication_status":"published","_id":"59816","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"doi":"10.1145/3728179.3728190","user_id":"16153","citation":{"ama":"Pape G, Wintermann B, Jungemann L, et al. AuroraFlow, an Easy-to-Use, Low-Latency FPGA Communication Solution Demonstrated on Multi-FPGA Neural Network Inference. In: <i>Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies</i>. ; 2025. doi:<a href=\"https://doi.org/10.1145/3728179.3728190\">10.1145/3728179.3728190</a>","bibtex":"@inproceedings{Pape_Wintermann_Jungemann_Lass_Meyer_Riebler_Plessl_2025, title={AuroraFlow, an Easy-to-Use, Low-Latency FPGA Communication Solution Demonstrated on Multi-FPGA Neural Network Inference}, DOI={<a href=\"https://doi.org/10.1145/3728179.3728190\">10.1145/3728179.3728190</a>}, booktitle={Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies}, author={Pape, Gerrit and Wintermann, Bjarne and Jungemann, Linus and Lass, Michael and Meyer, Marius and Riebler, Heinrich and Plessl, Christian}, year={2025} }","mla":"Pape, Gerrit, et al. “AuroraFlow, an Easy-to-Use, Low-Latency FPGA Communication Solution Demonstrated on Multi-FPGA Neural Network Inference.” <i>Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies</i>, 2025, doi:<a href=\"https://doi.org/10.1145/3728179.3728190\">10.1145/3728179.3728190</a>.","chicago":"Pape, Gerrit, Bjarne Wintermann, Linus Jungemann, Michael Lass, Marius Meyer, Heinrich Riebler, and Christian Plessl. “AuroraFlow, an Easy-to-Use, Low-Latency FPGA Communication Solution Demonstrated on Multi-FPGA Neural Network Inference.” In <i>Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies</i>, 2025. <a href=\"https://doi.org/10.1145/3728179.3728190\">https://doi.org/10.1145/3728179.3728190</a>.","short":"G. 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Pape <i>et al.</i>, “AuroraFlow, an Easy-to-Use, Low-Latency FPGA Communication Solution Demonstrated on Multi-FPGA Neural Network Inference,” presented at the The International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies 2025 (HEART 2025) , Kumamoto, Japan, 2025, doi: <a href=\"https://doi.org/10.1145/3728179.3728190\">10.1145/3728179.3728190</a>."},"publication":"Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies","project":[{"name":"EKI-App: EKI-App: Energieeffiziente Künstliche Intelligenz im Rechenzentrum durch Approximation von tiefen neuronalen Netzen für Field-Programmable Gate Arrays","_id":"296"}],"date_created":"2025-05-06T09:53:41Z","oa":"1","department":[{"_id":"27"}],"type":"conference"},{"publication":"Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies","citation":{"bibtex":"@inproceedings{Bröker_Menzel_Plessl_2025, title={Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics Simulations}, DOI={<a href=\"https://doi.org/10.1145/3728179.3728187\">10.1145/3728179.3728187</a>}, booktitle={Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies}, publisher={ACM}, author={Bröker, Mika and Menzel, Johannes and Plessl, Christian}, year={2025} }","ama":"Bröker M, Menzel J, Plessl C. Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics Simulations. In: <i>Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies</i>. ACM; 2025. doi:<a href=\"https://doi.org/10.1145/3728179.3728187\">10.1145/3728179.3728187</a>","mla":"Bröker, Mika, et al. “Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics Simulations.” <i>Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies</i>, ACM, 2025, doi:<a href=\"https://doi.org/10.1145/3728179.3728187\">10.1145/3728179.3728187</a>.","short":"M. Bröker, J. Menzel, C. Plessl, in: Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies, ACM, 2025.","chicago":"Bröker, Mika, Johannes Menzel, and Christian Plessl. “Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics Simulations.” In <i>Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies</i>. ACM, 2025. <a href=\"https://doi.org/10.1145/3728179.3728187\">https://doi.org/10.1145/3728179.3728187</a>.","ieee":"M. Bröker, J. Menzel, and C. Plessl, “Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics Simulations,” 2025, doi: <a href=\"https://doi.org/10.1145/3728179.3728187\">10.1145/3728179.3728187</a>.","apa":"Bröker, M., Menzel, J., &#38; Plessl, C. (2025). Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics Simulations. <i>Proceedings of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies</i>. <a href=\"https://doi.org/10.1145/3728179.3728187\">https://doi.org/10.1145/3728179.3728187</a>"},"date_created":"2026-05-13T09:44:21Z","type":"conference","oa":"1","department":[{"_id":"27"},{"_id":"518"}],"status":"public","year":"2025","title":"Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics Simulations","author":[{"last_name":"Bröker","first_name":"Mika","full_name":"Bröker, Mika"},{"full_name":"Menzel, Johannes","first_name":"Johannes","last_name":"Menzel"},{"id":"16153","last_name":"Plessl","first_name":"Christian","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian"}],"date_updated":"2026-05-13T09:45:17Z","publication_status":"published","main_file_link":[{"open_access":"1"}],"publisher":"ACM","_id":"65618","language":[{"iso":"eng"}],"doi":"10.1145/3728179.3728187","user_id":"16153"},{"status":"public","user_id":"61977","volume":54,"_id":"59878","publisher":"Materials Research Forum LLC","quality_controlled":"1","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"citation":{"mla":"Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” <i>Materials Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>.","ama":"Schlichter MC, Harabati Ö, Ludwig J-P, et al. Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints. In: <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>","bibtex":"@inproceedings{Schlichter_Harabati_Ludwig_Böhnke_Bielak_Bobbert_Meschut_2025, place={Paestum}, title={Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints}, volume={54}, DOI={<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Ludwig, Jean-Patrick and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2025} }","apa":"Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2025). Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints. <i>Materials Research Proceedings</i>, <i>54</i>. <a href=\"https://doi.org/10.21741/9781644903599-148\">https://doi.org/10.21741/9781644903599-148</a>","ieee":"M. C. Schlichter <i>et al.</i>, “Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints,” in <i>Materials Research Proceedings</i>, 2025, vol. 54, doi: <a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>.","chicago":"Schlichter, Malte Christian, Özcan Harabati, Jean-Patrick Ludwig, Max Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Experimental and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” In <i>Materials Research Proceedings</i>, Vol. 54. Paestum: Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903599-148\">https://doi.org/10.21741/9781644903599-148</a>.","short":"M.C. Schlichter, Ö. Harabati, J.-P. Ludwig, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, Paestum, 2025."},"place":"Paestum","date_updated":"2026-05-13T13:50:44Z","publication_status":"published","intvolume":"        54","year":"2025","title":"Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints","publication_identifier":{"issn":["2474-395X"]},"author":[{"full_name":"Schlichter, Malte Christian","first_name":"Malte Christian","last_name":"Schlichter","id":"61977"},{"full_name":"Harabati, Özcan","last_name":"Harabati","first_name":"Özcan"},{"full_name":"Ludwig, Jean-Patrick","last_name":"Ludwig","first_name":"Jean-Patrick","id":"76631"},{"full_name":"Böhnke, Max","first_name":"Max","last_name":"Böhnke","id":"45779"},{"id":"34782","full_name":"Bielak, Christian Roman","last_name":"Bielak","first_name":"Christian Roman"},{"full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias","id":"7850"},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246"}],"doi":"10.21741/9781644903599-148","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Abstract. In the development of advanced lightweight automotive solutions, self-piercing riveting (SPR) offers the possibility of joining multi-material structures to fulfil a wide variety of requirements. With regard to the entire process chain, production-related pre-deformations of the parts to be joined can influence the geometric shape and load capacity of SPR joints. Various studies have investigated the influence of pre-stretched sheet materials, in the sense of pre-drawing processes, on the formation of SPR joints. The impact of pre-stretching sheet metals on the formation of their geometrical characteristics and the shear-tensile strength of SPR processes was observed [1]. Pre-rolled semi-finished products are also joined together in mixed material automotive structures, e.g. tailor rolled blanks. This work aims to investigate the influence of pre-rolled joining parts on the geometric formation and load-carrying capacity of SPR joints. For this purpose, sheets of metal are cold-formed using a rolling process to induce a defined strain-hardening state in the material and then joined in various combinations. As the degree of deformation increases, the rolling of samples can lead to minimal accumulation of damage in the sheet materials, which can influence the joint behaviour. The rolling process, as well as the subsequent joining process, are also investigated by FEM. The influence of pre-rolled semi-finished products on the strength of the SPR joints is investigated.</jats:p>","lang":"eng"}],"publication":"Materials Research Proceedings","type":"conference","department":[{"_id":"157"}],"date_created":"2025-05-13T06:54:20Z"},{"_id":"65611","publisher":"American Physical Society (APS)","volume":112,"user_id":"42514","status":"public","citation":{"apa":"Lienhart, M., Gawarecki, K., Stöcker, M., Bopp, F., Cullip, C., Akhlaq, N., Thalacker, C., Schall, J., Rodt, S., Ludwig, A., Reuter, D., Reitzenstein, S., Müller, K., Machnikowski, P., &#38; Finley, J. J. (2025). Resonant and antiresonant exciton-phonon coupling in quantum dot molecules. <i>Physical Review B</i>, <i>112</i>(23), Article 235305. <a href=\"https://doi.org/10.1103/xc25-1tph\">https://doi.org/10.1103/xc25-1tph</a>","ieee":"M. Lienhart <i>et al.</i>, “Resonant and antiresonant exciton-phonon coupling in quantum dot molecules,” <i>Physical Review B</i>, vol. 112, no. 23, Art. no. 235305, 2025, doi: <a href=\"https://doi.org/10.1103/xc25-1tph\">10.1103/xc25-1tph</a>.","chicago":"Lienhart, Michelle, Krzysztof Gawarecki, Markus Stöcker, Frederik Bopp, Charlotte Cullip, Nadeem Akhlaq, Christopher Thalacker, et al. “Resonant and Antiresonant Exciton-Phonon Coupling in Quantum Dot Molecules.” <i>Physical Review B</i> 112, no. 23 (2025). <a href=\"https://doi.org/10.1103/xc25-1tph\">https://doi.org/10.1103/xc25-1tph</a>.","short":"M. Lienhart, K. Gawarecki, M. Stöcker, F. Bopp, C. Cullip, N. Akhlaq, C. Thalacker, J. Schall, S. Rodt, A. Ludwig, D. Reuter, S. Reitzenstein, K. Müller, P. Machnikowski, J.J. Finley, Physical Review B 112 (2025).","mla":"Lienhart, Michelle, et al. “Resonant and Antiresonant Exciton-Phonon Coupling in Quantum Dot Molecules.” <i>Physical Review B</i>, vol. 112, no. 23, 235305, American Physical Society (APS), 2025, doi:<a href=\"https://doi.org/10.1103/xc25-1tph\">10.1103/xc25-1tph</a>.","ama":"Lienhart M, Gawarecki K, Stöcker M, et al. Resonant and antiresonant exciton-phonon coupling in quantum dot molecules. <i>Physical Review B</i>. 2025;112(23). doi:<a href=\"https://doi.org/10.1103/xc25-1tph\">10.1103/xc25-1tph</a>","bibtex":"@article{Lienhart_Gawarecki_Stöcker_Bopp_Cullip_Akhlaq_Thalacker_Schall_Rodt_Ludwig_et al._2025, title={Resonant and antiresonant exciton-phonon coupling in quantum dot molecules}, volume={112}, DOI={<a href=\"https://doi.org/10.1103/xc25-1tph\">10.1103/xc25-1tph</a>}, number={23235305}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Lienhart, Michelle and Gawarecki, Krzysztof and Stöcker, Markus and Bopp, Frederik and Cullip, Charlotte and Akhlaq, Nadeem and Thalacker, Christopher and Schall, Johannes and Rodt, Sven and Ludwig, Arne and et al.}, year={2025} }"},"language":[{"iso":"eng"}],"article_number":"235305","doi":"10.1103/xc25-1tph","publication_identifier":{"issn":["2469-9950","2469-9969"]},"author":[{"last_name":"Lienhart","first_name":"Michelle","full_name":"Lienhart, Michelle"},{"full_name":"Gawarecki, Krzysztof","last_name":"Gawarecki","first_name":"Krzysztof"},{"last_name":"Stöcker","first_name":"Markus","full_name":"Stöcker, Markus"},{"first_name":"Frederik","last_name":"Bopp","full_name":"Bopp, Frederik"},{"full_name":"Cullip, Charlotte","first_name":"Charlotte","last_name":"Cullip"},{"last_name":"Akhlaq","first_name":"Nadeem","full_name":"Akhlaq, Nadeem"},{"full_name":"Thalacker, Christopher","first_name":"Christopher","last_name":"Thalacker"},{"first_name":"Johannes","last_name":"Schall","full_name":"Schall, Johannes"},{"full_name":"Rodt, Sven","last_name":"Rodt","first_name":"Sven"},{"last_name":"Ludwig","first_name":"Arne","full_name":"Ludwig, Arne"},{"full_name":"Reuter, Dirk","last_name":"Reuter","first_name":"Dirk","id":"37763"},{"last_name":"Reitzenstein","first_name":"Stephan","full_name":"Reitzenstein, Stephan"},{"full_name":"Müller, Kai","first_name":"Kai","last_name":"Müller"},{"full_name":"Machnikowski, Paweł","last_name":"Machnikowski","first_name":"Paweł"},{"full_name":"Finley, Jonathan J.","first_name":"Jonathan J.","last_name":"Finley"}],"title":"Resonant and antiresonant exciton-phonon coupling in quantum dot molecules","year":"2025","intvolume":"       112","publication_status":"published","date_updated":"2026-05-15T06:13:00Z","date_created":"2026-05-13T06:24:29Z","department":[{"_id":"15"},{"_id":"230"}],"type":"journal_article","publication":"Physical Review B","issue":"23","abstract":[{"lang":"eng","text":"<jats:p>\r\n                    Spins confined in optically active quantum dot molecules (QDMs) can be used for the deterministic generation of photonic graph states with tailored entanglement structures. Their usefulness for the generation of such nonclassical states of light is determined by orbital and spin decoherence mechanisms, particularly phonon-mediated processes dominant at energy scales up to a few millielectronvolts. Here, we directly measure the spectral function of orbital phonon relaxation between the energy states of the neutral exciton in a QDM and benchmark our findings against microscopic\r\n                    <a:math xmlns:a=\"http://www.w3.org/1998/Math/MathML\">\r\n                      <a:mrow>\r\n                        <a:mi mathvariant=\"bold-italic\">k</a:mi>\r\n                        <a:mo>·</a:mo>\r\n                        <a:mi mathvariant=\"bold-italic\">p</a:mi>\r\n                        <a:mspace width=\"4pt\"/>\r\n                      </a:mrow>\r\n                    </a:math>\r\n                    theory. Our results reveal pronounced resonances and antiresonances in the phonon-relaxation rates, ranging from tens of\r\n                    <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\">\r\n                      <e:mrow>\r\n                        <e:mi>µ</e:mi>\r\n                        <e:msup>\r\n                          <e:mrow>\r\n                            <e:mi mathvariant=\"normal\">s</e:mi>\r\n                          </e:mrow>\r\n                          <e:mrow>\r\n                            <e:mo>−</e:mo>\r\n                            <e:mn>1</e:mn>\r\n                          </e:mrow>\r\n                        </e:msup>\r\n                      </e:mrow>\r\n                    </e:math>\r\n                    up to tens of\r\n                    <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\">\r\n                      <g:msup>\r\n                        <g:mrow>\r\n                          <g:mi>ns</g:mi>\r\n                        </g:mrow>\r\n                        <g:mrow>\r\n                          <g:mo>−</g:mo>\r\n                          <g:mn>1</g:mn>\r\n                        </g:mrow>\r\n                      </g:msup>\r\n                    </g:math>\r\n                    . Comparison with a kinetic model reveals the voltage (energy) dependent phonon coupling strength and fully explains the interplay between phonon-assisted relaxation and radiative recombination. The resonances and antiresonances enable further tunability of the exciton lifetime which can be leveraged to increase the lifetime of energetically unfavorable charge configurations needed for realizing efficient spin-photon interfaces and multidimensional cluster states.\r\n                  </jats:p>"}]},{"doi":"10.4230/LIPIcs.ITCS.2025.85","language":[{"iso":"eng"}],"intvolume":"       325","date_updated":"2026-05-15T08:38:31Z","publication_status":"published","author":[{"first_name":"Dorian","last_name":"Rudolph","full_name":"Rudolph, Dorian","id":"57863"},{"full_name":"Gharibian, Sevag","last_name":"Gharibian","first_name":"Sevag","orcid":"0000-0002-9992-3379","id":"71541"},{"full_name":"Nagaj, Daniel","last_name":"Nagaj","first_name":"Daniel"}],"year":"2025","title":"Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation","department":[{"_id":"7"},{"_id":"623"}],"type":"conference","date_created":"2024-01-07T20:09:13Z","abstract":[{"text":"Despite the fundamental role the Quantum Satisfiability (QSAT) problem has\r\nplayed in quantum complexity theory, a central question remains open: At which\r\nlocal dimension does the complexity of QSAT transition from \"easy\" to \"hard\"?\r\nHere, we study QSAT with each constraint acting on a $k$-dimensional and\r\n$l$-dimensional qudit pair, denoted $(k,l)$-QSAT. Our first main result shows\r\nthat, surprisingly, QSAT on qubits can remain $\\mathsf{QMA}_1$-hard, in that\r\n$(2,5)$-QSAT is $\\mathsf{QMA}_1$-complete. In contrast, $2$-SAT on qubits is\r\nwell-known to be poly-time solvable [Bravyi, 2006]. Our second main result\r\nproves that $(3,d)$-QSAT on the 1D line with $d\\in O(1)$ is also\r\n$\\mathsf{QMA}_1$-hard. Finally, we initiate the study of 1D $(2,d)$-QSAT by\r\ngiving a frustration-free 1D Hamiltonian with a unique, entangled ground state.\r\n  Our first result uses a direct embedding, combining a novel clock\r\nconstruction with the 2D circuit-to-Hamiltonian construction of [Gosset, Nagaj,\r\n2013]. Of note is a new simplified and analytic proof for the latter (as\r\nopposed to a partially numeric proof in [GN13]). This exploits Unitary Labelled\r\nGraphs [Bausch, Cubitt, Ozols, 2017] together with a new \"Nullspace Connection\r\nLemma\", allowing us to break low energy analyses into small patches of\r\nprojectors, and to improve the soundness analysis of [GN13] from\r\n$\\Omega(1/T^6)$ to $\\Omega(1/T^2)$, for $T$ the number of gates. Our second\r\nresult goes via black-box reduction: Given an arbitrary 1D Hamiltonian $H$ on\r\n$d'$-dimensional qudits, we show how to embed it into an effective null-space\r\nof a 1D $(3,d)$-QSAT instance, for $d\\in O(1)$. Our approach may be viewed as a\r\nweaker notion of \"simulation\" (\\`a la [Bravyi, Hastings 2017], [Cubitt,\r\nMontanaro, Piddock 2018]). As far as we are aware, this gives the first\r\n\"black-box simulation\"-based $\\mathsf{QMA}_1$-hardness result, i.e. for\r\nfrustration-free Hamiltonians.","lang":"eng"}],"issue":"85","publication":"16th Innovations in Theoretical Computer Science (ITCS)","volume":325,"user_id":"71541","_id":"50272","page":"1-24","status":"public","external_id":{"arxiv":["2401.02368"]},"citation":{"mla":"Rudolph, Dorian, et al. “Quantum 2-SAT on Low Dimensional Systems Is $\\mathsf{QMA}_1$-Complete:  Direct Embeddings and Black-Box Simulation.” <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, vol. 325, no. 85, 2025, pp. 1–24, doi:<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>.","bibtex":"@inproceedings{Rudolph_Gharibian_Nagaj_2025, title={Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation}, volume={325}, DOI={<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>}, number={85}, booktitle={16th Innovations in Theoretical Computer Science (ITCS)}, author={Rudolph, Dorian and Gharibian, Sevag and Nagaj, Daniel}, year={2025}, pages={1–24} }","ama":"Rudolph D, Gharibian S, Nagaj D. Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation. In: <i>16th Innovations in Theoretical Computer Science (ITCS)</i>. Vol 325. ; 2025:1-24. doi:<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>","ieee":"D. Rudolph, S. Gharibian, and D. Nagaj, “Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation,” in <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, 2025, vol. 325, no. 85, pp. 1–24, doi: <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>.","apa":"Rudolph, D., Gharibian, S., &#38; Nagaj, D. (2025). Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation. <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, <i>325</i>(85), 1–24. <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">https://doi.org/10.4230/LIPIcs.ITCS.2025.85</a>","short":"D. Rudolph, S. Gharibian, D. Nagaj, in: 16th Innovations in Theoretical Computer Science (ITCS), 2025, pp. 1–24.","chicago":"Rudolph, Dorian, Sevag Gharibian, and Daniel Nagaj. “Quantum 2-SAT on Low Dimensional Systems Is $\\mathsf{QMA}_1$-Complete:  Direct Embeddings and Black-Box Simulation.” In <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, 325:1–24, 2025. <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">https://doi.org/10.4230/LIPIcs.ITCS.2025.85</a>."}},{"date_created":"2026-01-07T11:00:21Z","department":[{"_id":"17"},{"_id":"174"},{"_id":"320"}],"type":"journal_article","citation":{"ama":"Grimminger-Seidensticker E, Treder A, Niederhaus C. Sprachbezogene Kompetenzerwartungen im Sportunterricht – Eine systematische Lehrplananalyse. <i>Zeitschrift für Sportpädagogische Forschung</i>. 2025;13(2):189-212. doi:<a href=\"https://doi.org/10.5771/2196-5218-2025-2-189\">https://doi.org/10.5771/2196-5218-2025-2-189</a>","bibtex":"@article{Grimminger-Seidensticker_Treder_Niederhaus_2025, title={Sprachbezogene Kompetenzerwartungen im Sportunterricht – Eine systematische Lehrplananalyse}, volume={13}, DOI={<a href=\"https://doi.org/10.5771/2196-5218-2025-2-189\">https://doi.org/10.5771/2196-5218-2025-2-189</a>}, number={2}, journal={Zeitschrift für Sportpädagogische Forschung}, publisher={Nomos}, author={Grimminger-Seidensticker, Elke and Treder, Alexandra and Niederhaus, Constanze}, year={2025}, pages={189–212} }","mla":"Grimminger-Seidensticker, Elke, et al. “Sprachbezogene Kompetenzerwartungen im Sportunterricht – Eine systematische Lehrplananalyse.” <i>Zeitschrift für Sportpädagogische Forschung</i>, vol. 13, no. 2, Nomos, 2025, pp. 189–212, doi:<a href=\"https://doi.org/10.5771/2196-5218-2025-2-189\">https://doi.org/10.5771/2196-5218-2025-2-189</a>.","chicago":"Grimminger-Seidensticker, Elke, Alexandra Treder, and Constanze Niederhaus. “Sprachbezogene Kompetenzerwartungen im Sportunterricht – Eine systematische Lehrplananalyse.” <i>Zeitschrift für Sportpädagogische Forschung</i> 13, no. 2 (2025): 189–212. <a href=\"https://doi.org/10.5771/2196-5218-2025-2-189\">https://doi.org/10.5771/2196-5218-2025-2-189</a>.","short":"E. Grimminger-Seidensticker, A. Treder, C. Niederhaus, Zeitschrift für Sportpädagogische Forschung 13 (2025) 189–212.","apa":"Grimminger-Seidensticker, E., Treder, A., &#38; Niederhaus, C. (2025). Sprachbezogene Kompetenzerwartungen im Sportunterricht – Eine systematische Lehrplananalyse. <i>Zeitschrift für Sportpädagogische Forschung</i>, <i>13</i>(2), 189–212. <a href=\"https://doi.org/10.5771/2196-5218-2025-2-189\">https://doi.org/10.5771/2196-5218-2025-2-189</a>","ieee":"E. Grimminger-Seidensticker, A. Treder, and C. Niederhaus, “Sprachbezogene Kompetenzerwartungen im Sportunterricht – Eine systematische Lehrplananalyse,” <i>Zeitschrift für Sportpädagogische Forschung</i>, vol. 13, no. 2, pp. 189–212, 2025, doi: <a href=\"https://doi.org/10.5771/2196-5218-2025-2-189\">https://doi.org/10.5771/2196-5218-2025-2-189</a>."},"publication":"Zeitschrift für Sportpädagogische Forschung","issue":"2","_id":"63513","language":[{"iso":"ger"}],"publisher":"Nomos","page":"189-212","volume":13,"user_id":"54999","doi":"https://doi.org/10.5771/2196-5218-2025-2-189","author":[{"id":"85816","full_name":"Grimminger-Seidensticker, Elke","first_name":"Elke","last_name":"Grimminger-Seidensticker"},{"id":"95412","last_name":"Treder","first_name":"Alexandra","orcid":"0009-0003-9045-5964","full_name":"Treder, Alexandra"},{"full_name":"Niederhaus, Constanze","last_name":"Niederhaus","first_name":"Constanze","id":"54999"}],"title":"Sprachbezogene Kompetenzerwartungen im Sportunterricht – Eine systematische Lehrplananalyse","status":"public","year":"2025","intvolume":"        13","publication_status":"published","date_updated":"2026-05-15T07:03:02Z"},{"abstract":[{"text":"Estimating ground state energies of many-body Hamiltonians is a central task\r\nin many areas of quantum physics. In this work, we give quantum algorithms\r\nwhich, given any $k$-body Hamiltonian $H$, compute an estimate for the ground\r\nstate energy and prepare a quantum state achieving said energy, respectively.\r\nSpecifically, for any $\\varepsilon>0$, our algorithms return, with high\r\nprobability, an estimate of the ground state energy of $H$ within additive\r\nerror $\\varepsilon M$, or a quantum state with the corresponding energy. Here,\r\n$M$ is the total strength of all interaction terms, which in general is\r\nextensive in the system size. Our approach makes no assumptions about the\r\ngeometry or spatial locality of interaction terms of the input Hamiltonian and\r\nthus handles even long-range or all-to-all interactions, such as in quantum\r\nchemistry, where lattice-based techniques break down. In this fully general\r\nsetting, the runtime of our algorithms scales as $2^{cn/2}$ for $c<1$, yielding\r\nthe first quantum algorithms for low-energy estimation breaking the natural\r\nbound based on Grover search. The core of our approach is remarkably simple,\r\nand relies on showing that any $k$-body Hamiltonian has a low-energy subspace\r\nof exponential dimension.","lang":"eng"}],"publication":"Physical Review Letters","citation":{"mla":"Buhrman, Harry, et al. “Beating Grover Search for Low-Energy Estimation and State Preparation.” <i>Physical Review Letters</i>, vol. 135, 2025, p. 030601, doi:<a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>.","ama":"Buhrman H, Gharibian S, Landau Z, Gall FL, Schuch N, Tamaki S. Beating Grover search for low-energy estimation and state preparation. <i>Physical Review Letters</i>. 2025;135:030601. doi:<a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>","bibtex":"@article{Buhrman_Gharibian_Landau_Gall_Schuch_Tamaki_2025, title={Beating Grover search for low-energy estimation and state preparation}, volume={135}, DOI={<a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>}, journal={Physical Review Letters}, author={Buhrman, Harry and Gharibian, Sevag and Landau, Zeph and Gall, François Le and Schuch, Norbert and Tamaki, Suguru}, year={2025}, pages={030601} }","apa":"Buhrman, H., Gharibian, S., Landau, Z., Gall, F. L., Schuch, N., &#38; Tamaki, S. (2025). Beating Grover search for low-energy estimation and state preparation. <i>Physical Review Letters</i>, <i>135</i>, 030601. <a href=\"https://doi.org/10.1103/29qw-bssx\">https://doi.org/10.1103/29qw-bssx</a>","ieee":"H. Buhrman, S. Gharibian, Z. Landau, F. L. Gall, N. Schuch, and S. Tamaki, “Beating Grover search for low-energy estimation and state preparation,” <i>Physical Review Letters</i>, vol. 135, p. 030601, 2025, doi: <a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>.","chicago":"Buhrman, Harry, Sevag Gharibian, Zeph Landau, François Le Gall, Norbert Schuch, and Suguru Tamaki. “Beating Grover Search for Low-Energy Estimation and State Preparation.” <i>Physical Review Letters</i> 135 (2025): 030601. <a href=\"https://doi.org/10.1103/29qw-bssx\">https://doi.org/10.1103/29qw-bssx</a>.","short":"H. Buhrman, S. Gharibian, Z. Landau, F.L. Gall, N. Schuch, S. Tamaki, Physical Review Letters 135 (2025) 030601."},"type":"journal_article","department":[{"_id":"7"},{"_id":"623"}],"external_id":{"arxiv":["2407.03073"]},"date_created":"2024-07-04T09:02:42Z","date_updated":"2026-05-15T08:40:45Z","publication_status":"published","intvolume":"       135","title":"Beating Grover search for low-energy estimation and state preparation","status":"public","year":"2025","author":[{"first_name":"Harry","last_name":"Buhrman","full_name":"Buhrman, Harry"},{"id":"71541","orcid":"0000-0002-9992-3379","first_name":"Sevag","last_name":"Gharibian","full_name":"Gharibian, Sevag"},{"full_name":"Landau, Zeph","first_name":"Zeph","last_name":"Landau"},{"last_name":"Gall","first_name":"François Le","full_name":"Gall, François Le"},{"first_name":"Norbert","last_name":"Schuch","full_name":"Schuch, Norbert"},{"full_name":"Tamaki, Suguru","last_name":"Tamaki","first_name":"Suguru"}],"doi":"10.1103/29qw-bssx","user_id":"71541","volume":135,"page":"030601","_id":"55037","language":[{"iso":"eng"}]},{"publication":"arXiv:2510.08545","citation":{"chicago":"Chabaud, Ulysse, Sevag Gharibian, Saeed Mehraban, Arsalan Motamedi, Hamid Reza Naeij, Dorian Rudolph, and Dhruva Sambrani. “Energy, Bosons and Computational Complexity.” <i>ArXiv:2510.08545</i>, 2025.","short":"U. Chabaud, S. Gharibian, S. Mehraban, A. Motamedi, H.R. Naeij, D. Rudolph, D. Sambrani, ArXiv:2510.08545 (2025).","apa":"Chabaud, U., Gharibian, S., Mehraban, S., Motamedi, A., Naeij, H. R., Rudolph, D., &#38; Sambrani, D. (2025). Energy, Bosons and Computational Complexity. In <i>arXiv:2510.08545</i>.","ieee":"U. Chabaud <i>et al.</i>, “Energy, Bosons and Computational Complexity,” <i>arXiv:2510.08545</i>. 2025.","ama":"Chabaud U, Gharibian S, Mehraban S, et al. Energy, Bosons and Computational Complexity. <i>arXiv:251008545</i>. Published online 2025.","bibtex":"@article{Chabaud_Gharibian_Mehraban_Motamedi_Naeij_Rudolph_Sambrani_2025, title={Energy, Bosons and Computational Complexity}, journal={arXiv:2510.08545}, author={Chabaud, Ulysse and Gharibian, Sevag and Mehraban, Saeed and Motamedi, Arsalan and Naeij, Hamid Reza and Rudolph, Dorian and Sambrani, Dhruva}, year={2025} }","mla":"Chabaud, Ulysse, et al. “Energy, Bosons and Computational Complexity.” <i>ArXiv:2510.08545</i>, 2025."},"abstract":[{"text":"We investigate the role of energy, i.e. average photon number, as a resource\r\nin the computational complexity of bosonic systems. We show three sets of\r\nresults: (1. Energy growth rates) There exist bosonic gate sets which increase\r\nenergy incredibly rapidly, obtaining e.g. infinite energy in finite/constant\r\ntime. We prove these high energies can make computing properties of bosonic\r\ncomputations, such as deciding whether a given computation will attain infinite\r\nenergy, extremely difficult, formally undecidable. (2. Lower bounds on\r\ncomputational power) More energy ``='' more computational power. For example,\r\ncertain gate sets allow poly-time bosonic computations to simulate PTOWER, the\r\nset of deterministic computations whose runtime scales as a tower of\r\nexponentials with polynomial height. Even just exponential energy and $O(1)$\r\nmodes suffice to simulate NP, which, importantly, is a setup similar to that of\r\nthe recent bosonic factoring algorithm of [Brenner, Caha, Coiteux-Roy and\r\nKoenig (2024)]. For simpler gate sets, we show an energy hierarchy theorem. (3.\r\nUpper bounds on computational power) Bosonic computations with polynomial\r\nenergy can be simulated in BQP, ``physical'' bosonic computations with\r\narbitrary finite energy are decidable, and the gate set consisting of Gaussian\r\ngates and the cubic phase gate can be simulated in PP, with exponential bound\r\non energy, improving upon the previous PSPACE upper bound. Finally, combining\r\nupper and lower bounds yields no-go theorems for a continuous-variable\r\nSolovay--Kitaev theorem for gate sets such as the Gaussian and cubic phase\r\ngates.","lang":"eng"}],"external_id":{"arxiv":["2510.08545"]},"date_created":"2025-10-10T13:44:52Z","type":"preprint","department":[{"_id":"7"},{"_id":"623"}],"status":"public","year":"2025","title":"Energy, Bosons and Computational Complexity","author":[{"full_name":"Chabaud, Ulysse","first_name":"Ulysse","last_name":"Chabaud"},{"first_name":"Sevag","last_name":"Gharibian","orcid":"0000-0002-9992-3379","full_name":"Gharibian, Sevag","id":"71541"},{"full_name":"Mehraban, Saeed","last_name":"Mehraban","first_name":"Saeed"},{"full_name":"Motamedi, Arsalan","first_name":"Arsalan","last_name":"Motamedi"},{"first_name":"Hamid Reza","last_name":"Naeij","full_name":"Naeij, Hamid Reza"},{"first_name":"Dorian","last_name":"Rudolph","full_name":"Rudolph, Dorian","id":"57863"},{"first_name":"Dhruva","last_name":"Sambrani","full_name":"Sambrani, Dhruva"}],"date_updated":"2026-05-15T08:39:50Z","_id":"61776","language":[{"iso":"eng"}],"user_id":"71541"},{"author":[{"full_name":"Kremer, Simon-Luca","last_name":"Kremer","first_name":"Simon-Luca"},{"id":"57863","first_name":"Dorian","last_name":"Rudolph","full_name":"Rudolph, Dorian"},{"id":"71541","full_name":"Gharibian, Sevag","orcid":"0000-0002-9992-3379","first_name":"Sevag","last_name":"Gharibian"}],"year":"2025","title":"Quantum k-SAT Related Hypergraph Problems","status":"public","date_updated":"2026-05-15T08:41:01Z","language":[{"iso":"eng"}],"_id":"60432","user_id":"71541","citation":{"ama":"Kremer S-L, Rudolph D, Gharibian S. Quantum k-SAT Related Hypergraph Problems. <i>arXiv:250617066</i>. Published online 2025.","bibtex":"@article{Kremer_Rudolph_Gharibian_2025, title={Quantum k-SAT Related Hypergraph Problems}, journal={arXiv:2506.17066}, author={Kremer, Simon-Luca and Rudolph, Dorian and Gharibian, Sevag}, year={2025} }","mla":"Kremer, Simon-Luca, et al. “Quantum K-SAT Related Hypergraph Problems.” <i>ArXiv:2506.17066</i>, 2025.","chicago":"Kremer, Simon-Luca, Dorian Rudolph, and Sevag Gharibian. “Quantum K-SAT Related Hypergraph Problems.” <i>ArXiv:2506.17066</i>, 2025.","short":"S.-L. Kremer, D. Rudolph, S. Gharibian, ArXiv:2506.17066 (2025).","apa":"Kremer, S.-L., Rudolph, D., &#38; Gharibian, S. (2025). Quantum k-SAT Related Hypergraph Problems. In <i>arXiv:2506.17066</i>.","ieee":"S.-L. Kremer, D. Rudolph, and S. Gharibian, “Quantum k-SAT Related Hypergraph Problems,” <i>arXiv:2506.17066</i>. 2025."},"publication":"arXiv:2506.17066","abstract":[{"lang":"eng","text":"The Quantum k-SAT problem is the quantum generalization of the k-SAT problem.\r\nIt is the problem whether a given local Hamiltonian is frustration-free.\r\nFrustration-free means that the ground state of the k-local Hamiltonian\r\nminimizes the energy of every local interaction term simultaneously. This is a\r\ncentral question in quantum physics and a canonical QMA_1-complete problem. The\r\nQuantum k-SAT problem is not as well studied as the classical k-SAT problem in\r\nterms of special tractable cases, approximation algorithms and parameterized\r\ncomplexity. In this paper, we will give a graph-theoretic study of the Quantum\r\nk-SAT problem with the structures core and radius. These hypergraph structures\r\nare important to solve the Quantum k-SAT problem. We can solve a Quantum k-SAT\r\ninstance in polynomial time if the derived hypergraph has a core of size n-m+a,\r\nwhere a is a constant, and the radius is at most logarithmic. If it exists, we\r\ncan find a core of size n-m+a with the best possible radius in polynomial time,\r\nwhereas finding a general minimum core with minimal radius is NP-hard."}],"date_created":"2025-06-27T06:56:35Z","external_id":{"arxiv":["2506.17066"]},"department":[{"_id":"7"},{"_id":"623"}],"type":"preprint"}]