--- _id: '61338' abstract: - lang: eng text: Conductive ferroelectric domain walls (DWs) represent a promising topical system for the development of nanoelectronic components and device sensors to be operational at elevated temperatures. DWs show very different properties as compared to their hosting bulk crystal, in particular with respect to the high local electrical conductivity. The objective of this work is to demonstrate DW conductivity up to temperatures as high as 400 °C which extends previous studies significantly. Experimental investigation of the DW conductivity of charged, inclined DWs is performed using 5 mol % MgO-doped lithium niobate single crystals. Current–voltage ( ) curves are determined by DC electrometer measurements and impedance spectroscopy and found to be identical. Moreover, impedance spectroscopy enables to recognize artifacts such as damaged electrodes. Temperature dependent measurements over repeated heating cycles reveal two distinct thermal activation energies for a given DW, with the higher of the activation energies only measured at higher temperatures. Depending on the specific sample, the higher activation energy is found above 160 °C to 230 °C. This suggests, in turn, that more than one type of defect/polaron is involved, and that the dominant transport mechanism changes with increasing temperature. First principles atomistic modeling suggests that the conductivity of inclined domain walls cannot be solely explained by the formation of a 2D carrier gas and must be supported by hopping processes. This holds true even at temperatures as high as 400 °C. Our investigations underline the potential to extend DW current based nanoelectronic and sensor applications even into the so-far unexplored temperature range up to 400 °C. article_number: '116949' article_type: original author: - first_name: Hendrik full_name: Wulfmeier, Hendrik last_name: Wulfmeier - first_name: Uliana full_name: Yakhnevych, Uliana last_name: Yakhnevych - first_name: Cornelius full_name: Boekhoff, Cornelius last_name: Boekhoff - first_name: Allan full_name: Diima, Allan last_name: Diima - first_name: Marlo full_name: Kunzner, Marlo last_name: Kunzner - first_name: Leonard M. full_name: Verhoff, Leonard M. last_name: Verhoff - first_name: Jonas full_name: Paul, Jonas last_name: Paul - first_name: Julius full_name: Ratzenberger, Julius last_name: Ratzenberger - first_name: Elke full_name: Beyreuther, Elke last_name: Beyreuther - first_name: Joshua full_name: Gössel, Joshua last_name: Gössel - first_name: Iuliia full_name: Kiseleva, Iuliia last_name: Kiseleva - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Simone full_name: Sanna, Simone last_name: Sanna - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng - first_name: Holger full_name: Fritze, Holger last_name: Fritze citation: ama: Wulfmeier H, Yakhnevych U, Boekhoff C, et al. Demonstration of domain wall current in MgO-doped lithium niobate single crystals up to 400°C. Solid State Ionics. 2025;429. doi:10.1016/j.ssi.2025.116949 apa: Wulfmeier, H., Yakhnevych, U., Boekhoff, C., Diima, A., Kunzner, M., Verhoff, L. M., Paul, J., Ratzenberger, J., Beyreuther, E., Gössel, J., Kiseleva, I., Rüsing, M., Sanna, S., Eng, L. M., & Fritze, H. (2025). Demonstration of domain wall current in MgO-doped lithium niobate single crystals up to 400°C. Solid State Ionics, 429, Article 116949. https://doi.org/10.1016/j.ssi.2025.116949 bibtex: '@article{Wulfmeier_Yakhnevych_Boekhoff_Diima_Kunzner_Verhoff_Paul_Ratzenberger_Beyreuther_Gössel_et al._2025, title={Demonstration of domain wall current in MgO-doped lithium niobate single crystals up to 400°C}, volume={429}, DOI={10.1016/j.ssi.2025.116949}, number={116949}, journal={Solid State Ionics}, publisher={Elsevier BV}, author={Wulfmeier, Hendrik and Yakhnevych, Uliana and Boekhoff, Cornelius and Diima, Allan and Kunzner, Marlo and Verhoff, Leonard M. and Paul, Jonas and Ratzenberger, Julius and Beyreuther, Elke and Gössel, Joshua and et al.}, year={2025} }' chicago: Wulfmeier, Hendrik, Uliana Yakhnevych, Cornelius Boekhoff, Allan Diima, Marlo Kunzner, Leonard M. Verhoff, Jonas Paul, et al. “Demonstration of Domain Wall Current in MgO-Doped Lithium Niobate Single Crystals up to 400°C.” Solid State Ionics 429 (2025). https://doi.org/10.1016/j.ssi.2025.116949. ieee: 'H. Wulfmeier et al., “Demonstration of domain wall current in MgO-doped lithium niobate single crystals up to 400°C,” Solid State Ionics, vol. 429, Art. no. 116949, 2025, doi: 10.1016/j.ssi.2025.116949.' mla: Wulfmeier, Hendrik, et al. “Demonstration of Domain Wall Current in MgO-Doped Lithium Niobate Single Crystals up to 400°C.” Solid State Ionics, vol. 429, 116949, Elsevier BV, 2025, doi:10.1016/j.ssi.2025.116949. short: H. Wulfmeier, U. Yakhnevych, C. Boekhoff, A. Diima, M. Kunzner, L.M. Verhoff, J. Paul, J. Ratzenberger, E. Beyreuther, J. Gössel, I. Kiseleva, M. Rüsing, S. Sanna, L.M. Eng, H. Fritze, Solid State Ionics 429 (2025). date_created: 2025-09-17T16:18:18Z date_updated: 2025-09-17T16:19:51Z department: - _id: '15' - _id: '288' - _id: '623' doi: 10.1016/j.ssi.2025.116949 intvolume: ' 429' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.ssi.2025.116949 oa: '1' publication: Solid State Ionics publication_identifier: issn: - 0167-2738 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Demonstration of domain wall current in MgO-doped lithium niobate single crystals up to 400°C type: journal_article user_id: '22501' volume: 429 year: '2025' ... --- _id: '61337' abstract: - lang: eng text: Lithium niobate–tantalate mixed (LNT) crystals promise improved performance and new applications for optical, piezomechanical, or electrical devices when compared to the end composition compounds lithium niobate and lithium tantalate. The macroscopic properties of ferroelectrics highly depend on the structure of the underlying ferroelectric domains, which within mixed crystals can interact with the local changes in chemical compositions. In this work, we demonstrate how ferroelectric domain walls can unambiguously be identified and distinguished from local changes in composition by correlating piezoresponse force microscopy with second harmonic generation microscopy, using the Cherenkov contrast, reference crystal contrast, and negative phase mismatching contrast. We demonstrate how measuring the associated intensity change when approaching negative phase mismatching can be used to deduce the local tantalum concentration fast and over a large sample area. Based on these results, we study the natural domain structures that appear from Czochralski-grown, multi-domain LNT solid solution crystals. The developed results and methods serve as the central foundation to poling these mixed crystal systems and are key for their integration and applications. article_number: '034101' author: - first_name: Boris full_name: Koppitz, Boris last_name: Koppitz - first_name: Tanya full_name: Saxena, Tanya last_name: Saxena - first_name: Felix full_name: Bernhardt, Felix last_name: Bernhardt - first_name: Steffen full_name: Ganschow, Steffen last_name: Ganschow - first_name: Simone full_name: Sanna, Simone last_name: Sanna - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng citation: ama: Koppitz B, Saxena T, Bernhardt F, et al. Second harmonic generation contrasts of ferroelectric domain structures and composition in lithium niobate–tantalate mixed crystals. Journal of Applied Physics. 2025;138(3). doi:10.1063/5.0276183 apa: Koppitz, B., Saxena, T., Bernhardt, F., Ganschow, S., Sanna, S., Rüsing, M., & Eng, L. M. (2025). Second harmonic generation contrasts of ferroelectric domain structures and composition in lithium niobate–tantalate mixed crystals. Journal of Applied Physics, 138(3), Article 034101. https://doi.org/10.1063/5.0276183 bibtex: '@article{Koppitz_Saxena_Bernhardt_Ganschow_Sanna_Rüsing_Eng_2025, title={Second harmonic generation contrasts of ferroelectric domain structures and composition in lithium niobate–tantalate mixed crystals}, volume={138}, DOI={10.1063/5.0276183}, number={3034101}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Koppitz, Boris and Saxena, Tanya and Bernhardt, Felix and Ganschow, Steffen and Sanna, Simone and Rüsing, Michael and Eng, Lukas M.}, year={2025} }' chicago: Koppitz, Boris, Tanya Saxena, Felix Bernhardt, Steffen Ganschow, Simone Sanna, Michael Rüsing, and Lukas M. Eng. “Second Harmonic Generation Contrasts of Ferroelectric Domain Structures and Composition in Lithium Niobate–Tantalate Mixed Crystals.” Journal of Applied Physics 138, no. 3 (2025). https://doi.org/10.1063/5.0276183. ieee: 'B. Koppitz et al., “Second harmonic generation contrasts of ferroelectric domain structures and composition in lithium niobate–tantalate mixed crystals,” Journal of Applied Physics, vol. 138, no. 3, Art. no. 034101, 2025, doi: 10.1063/5.0276183.' mla: Koppitz, Boris, et al. “Second Harmonic Generation Contrasts of Ferroelectric Domain Structures and Composition in Lithium Niobate–Tantalate Mixed Crystals.” Journal of Applied Physics, vol. 138, no. 3, 034101, AIP Publishing, 2025, doi:10.1063/5.0276183. short: B. Koppitz, T. Saxena, F. Bernhardt, S. Ganschow, S. Sanna, M. Rüsing, L.M. Eng, Journal of Applied Physics 138 (2025). date_created: 2025-09-17T16:16:04Z date_updated: 2025-09-17T16:18:02Z department: - _id: '15' - _id: '623' doi: 10.1063/5.0276183 funded_apc: '1' intvolume: ' 138' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://pubs.aip.org/aip/jap/article/138/3/034101/3352909 oa: '1' publication: Journal of Applied Physics publication_identifier: issn: - 0021-8979 - 1089-7550 publication_status: published publisher: AIP Publishing quality_controlled: '1' status: public title: Second harmonic generation contrasts of ferroelectric domain structures and composition in lithium niobate–tantalate mixed crystals type: journal_article user_id: '22501' volume: 138 year: '2025' ... --- _id: '61351' abstract: - lang: eng text: AbstractThe interaction of water molecules with semiconductor surfaces is relevant to various optoelectronic phenomena and physicochemical processes. Despite advances in fundamental understanding of water‐exposed surfaces, the detailed time‐ and energy‐resolved behavior of excited electrons remains largely unexplored. Here, the effects of water exposure on the near‐surface electron dynamics of phosphorus‐terminated p(2×2)/c(4×2)‐reconstructed indium phosphide (100) (P‐rich InP) are studied experimentally and matched to theoretical calculations. The P‐rich InP surface, consisting of H‐passivated P‐dimers, serves as a model for other P‐containing III‐V semiconductors such as gallium phosphide (GaP) or aluminum indium phosphide (AlInP). Electron dynamics near the surface are probed with femtosecond resolution using time‐resolved two‐photon photoemission (tr‐2PPE), a pump‐probe spectroscopic technique. Pulsed water exposure preserves electronic states and significantly increases lifetimes at the conduction band minimum (CBM). Density‐functional theory (DFT) calculations attribute these findings to suppression of surface vibrational modes in the top P‐layer by water exposure, reducing electronic transition probabilities of near‐band‐gap surface states. The results suggest that many near‐surface state lifetimes reported in ultra‐high vacuum may change significantly upon electrolyte exposure. These states may thus contribute more strongly to surface reactions than traditionally assumed. Demonstrating this effect for the technologically relevant P‐rich InP surface opens new opportunities in this underexplored area of surface electrochemistry. article_number: e00463 author: - first_name: Jonathan full_name: Diederich, Jonathan last_name: Diederich - first_name: Agnieszka full_name: Paszuk, Agnieszka last_name: Paszuk - first_name: Isaac Azahel full_name: Ruiz Alvarado, Isaac Azahel id: '79462' last_name: Ruiz Alvarado orcid: 0000-0002-4710-1170 - first_name: Marvin full_name: Krenz, Marvin last_name: Krenz - first_name: Mohammad Amin full_name: Zare Pour, Mohammad Amin last_name: Zare Pour - first_name: Diwakar Suresh full_name: Babu, Diwakar Suresh last_name: Babu - first_name: Jennifer full_name: Velazquez Rojas, Jennifer last_name: Velazquez Rojas - first_name: Christian full_name: Höhn, Christian last_name: Höhn - first_name: Yuying full_name: Gao, Yuying last_name: Gao - first_name: Klaus full_name: Schwarzburg, Klaus last_name: Schwarzburg - first_name: David full_name: Ostheimer, David last_name: Ostheimer - first_name: Rainer full_name: Eichberger, Rainer last_name: Eichberger - first_name: Wolf Gero full_name: Schmidt, Wolf Gero id: '468' last_name: Schmidt orcid: 0000-0002-2717-5076 - first_name: Thomas full_name: Hannappel, Thomas last_name: Hannappel - first_name: Roel van full_name: de Krol, Roel van last_name: de Krol - first_name: Dennis full_name: Friedrich, Dennis last_name: Friedrich citation: ama: Diederich J, Paszuk A, Ruiz Alvarado IA, et al. Ultrafast Electron Dynamics at the Water‐Modified InP(100) Surface. Advanced Materials Interfaces. 2025;12(16). doi:10.1002/admi.202500463 apa: Diederich, J., Paszuk, A., Ruiz Alvarado, I. A., Krenz, M., Zare Pour, M. A., Babu, D. S., Velazquez Rojas, J., Höhn, C., Gao, Y., Schwarzburg, K., Ostheimer, D., Eichberger, R., Schmidt, W. G., Hannappel, T., de Krol, R. van, & Friedrich, D. (2025). Ultrafast Electron Dynamics at the Water‐Modified InP(100) Surface. Advanced Materials Interfaces, 12(16), Article e00463. https://doi.org/10.1002/admi.202500463 bibtex: '@article{Diederich_Paszuk_Ruiz Alvarado_Krenz_Zare Pour_Babu_Velazquez Rojas_Höhn_Gao_Schwarzburg_et al._2025, title={Ultrafast Electron Dynamics at the Water‐Modified InP(100) Surface}, volume={12}, DOI={10.1002/admi.202500463}, number={16e00463}, journal={Advanced Materials Interfaces}, publisher={Wiley}, author={Diederich, Jonathan and Paszuk, Agnieszka and Ruiz Alvarado, Isaac Azahel and Krenz, Marvin and Zare Pour, Mohammad Amin and Babu, Diwakar Suresh and Velazquez Rojas, Jennifer and Höhn, Christian and Gao, Yuying and Schwarzburg, Klaus and et al.}, year={2025} }' chicago: Diederich, Jonathan, Agnieszka Paszuk, Isaac Azahel Ruiz Alvarado, Marvin Krenz, Mohammad Amin Zare Pour, Diwakar Suresh Babu, Jennifer Velazquez Rojas, et al. “Ultrafast Electron Dynamics at the Water‐Modified InP(100) Surface.” Advanced Materials Interfaces 12, no. 16 (2025). https://doi.org/10.1002/admi.202500463. ieee: 'J. Diederich et al., “Ultrafast Electron Dynamics at the Water‐Modified InP(100) Surface,” Advanced Materials Interfaces, vol. 12, no. 16, Art. no. e00463, 2025, doi: 10.1002/admi.202500463.' mla: Diederich, Jonathan, et al. “Ultrafast Electron Dynamics at the Water‐Modified InP(100) Surface.” Advanced Materials Interfaces, vol. 12, no. 16, e00463, Wiley, 2025, doi:10.1002/admi.202500463. short: J. Diederich, A. Paszuk, I.A. Ruiz Alvarado, M. Krenz, M.A. Zare Pour, D.S. Babu, J. Velazquez Rojas, C. Höhn, Y. Gao, K. Schwarzburg, D. Ostheimer, R. Eichberger, W.G. Schmidt, T. Hannappel, R. van de Krol, D. Friedrich, Advanced Materials Interfaces 12 (2025). date_created: 2025-09-18T11:03:16Z date_updated: 2025-09-18T11:06:59Z department: - _id: '15' - _id: '170' - _id: '295' - _id: '35' - _id: '230' - _id: '27' - _id: '429' doi: 10.1002/admi.202500463 intvolume: ' 12' issue: '16' language: - iso: eng project: - _id: '53' name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '55' name: TRR 142 - Project Area B - _id: '168' name: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*) - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Advanced Materials Interfaces publication_identifier: issn: - 2196-7350 - 2196-7350 publication_status: published publisher: Wiley status: public title: Ultrafast Electron Dynamics at the Water‐Modified InP(100) Surface type: journal_article user_id: '16199' volume: 12 year: '2025' ... --- _id: '61356' abstract: - lang: eng text: First-principles calculations reveal how topological defects in semiconducting carbon nanotubes trap triplet excitons and enable single-photon emission at telecom wavelengths, offering new insights into their potential for photonic devices. author: - first_name: Timur full_name: Biktagirov, Timur id: '65612' last_name: Biktagirov - first_name: Uwe full_name: Gerstmann, Uwe id: '171' last_name: Gerstmann orcid: 0000-0002-4476-223X - first_name: Wolf Gero full_name: Schmidt, Wolf Gero id: '468' last_name: Schmidt orcid: 0000-0002-2717-5076 citation: ama: Biktagirov T, Gerstmann U, Schmidt WG. Topological defects in semiconducting carbon nanotubes as triplet exciton traps and single-photon emitters. Nanoscale. 2025;17(11):6884-6891. doi:10.1039/d4nr03904a apa: Biktagirov, T., Gerstmann, U., & Schmidt, W. G. (2025). Topological defects in semiconducting carbon nanotubes as triplet exciton traps and single-photon emitters. Nanoscale, 17(11), 6884–6891. https://doi.org/10.1039/d4nr03904a bibtex: '@article{Biktagirov_Gerstmann_Schmidt_2025, title={Topological defects in semiconducting carbon nanotubes as triplet exciton traps and single-photon emitters}, volume={17}, DOI={10.1039/d4nr03904a}, number={11}, journal={Nanoscale}, publisher={Royal Society of Chemistry (RSC)}, author={Biktagirov, Timur and Gerstmann, Uwe and Schmidt, Wolf Gero}, year={2025}, pages={6884–6891} }' chicago: 'Biktagirov, Timur, Uwe Gerstmann, and Wolf Gero Schmidt. “Topological Defects in Semiconducting Carbon Nanotubes as Triplet Exciton Traps and Single-Photon Emitters.” Nanoscale 17, no. 11 (2025): 6884–91. https://doi.org/10.1039/d4nr03904a.' ieee: 'T. Biktagirov, U. Gerstmann, and W. G. Schmidt, “Topological defects in semiconducting carbon nanotubes as triplet exciton traps and single-photon emitters,” Nanoscale, vol. 17, no. 11, pp. 6884–6891, 2025, doi: 10.1039/d4nr03904a.' mla: Biktagirov, Timur, et al. “Topological Defects in Semiconducting Carbon Nanotubes as Triplet Exciton Traps and Single-Photon Emitters.” Nanoscale, vol. 17, no. 11, Royal Society of Chemistry (RSC), 2025, pp. 6884–91, doi:10.1039/d4nr03904a. short: T. Biktagirov, U. Gerstmann, W.G. Schmidt, Nanoscale 17 (2025) 6884–6891. date_created: 2025-09-18T11:23:25Z date_updated: 2025-09-18T11:26:23Z department: - _id: '15' - _id: '170' - _id: '295' - _id: '790' - _id: '35' - _id: '230' - _id: '27' - _id: '429' doi: 10.1039/d4nr03904a intvolume: ' 17' issue: '11' language: - iso: eng page: 6884-6891 project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing - _id: '53' name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '54' name: TRR 142 - Project Area A - _id: '55' name: TRR 142 - Project Area B - _id: '168' name: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*) - _id: '166' name: TRR 142 - Subproject A11 publication: Nanoscale publication_identifier: issn: - 2040-3364 - 2040-3372 publication_status: published publisher: Royal Society of Chemistry (RSC) status: public title: Topological defects in semiconducting carbon nanotubes as triplet exciton traps and single-photon emitters type: journal_article user_id: '16199' volume: 17 year: '2025' ... --- _id: '58519' abstract: - lang: eng text: A unified theoretical approach to describe the properties of multimode squeezed light generated in a lossy medium is presented. This approach is valid for Markovian environments and includes both a model of discrete losses based on the beamsplitter approach and a generalized continuous loss model based on the spatial Langevin equation. For an important class of Gaussian states, we derive master equations for the second-order correlation functions and illustrate their solution for both frequency-independent and frequency-dependent losses. Studying the mode structure, we demonstrate that in a lossy environment no broadband basis without quadrature correlations between the different broadband modes exists. Therefore, various techniques and strategies to introduce broadband modes can be considered. We show that the Mercer expansion and the Williamson-Euler decomposition do not provide modes in which the maximal squeezing contained in the system can be measured. In turn, we find a new broadband basis that maximizes squeezing in the lossy system and present an algorithm to construct it. article_number: '1621' author: - first_name: Denis A. full_name: Kopylov, Denis A. last_name: Kopylov - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: Polina R. full_name: Sharapova, Polina R. id: '60286' last_name: Sharapova citation: ama: Kopylov DA, Meier T, Sharapova PR. Theory of Multimode Squeezed Light Generation in Lossy Media. Quantum. 2025;9. doi:10.22331/q-2025-02-04-1621 apa: Kopylov, D. A., Meier, T., & Sharapova, P. R. (2025). Theory of Multimode Squeezed Light Generation in Lossy Media. Quantum, 9, Article 1621. https://doi.org/10.22331/q-2025-02-04-1621 bibtex: '@article{Kopylov_Meier_Sharapova_2025, title={Theory of Multimode Squeezed Light Generation in Lossy Media}, volume={9}, DOI={10.22331/q-2025-02-04-1621}, number={1621}, journal={Quantum}, publisher={Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften}, author={Kopylov, Denis A. and Meier, Torsten and Sharapova, Polina R.}, year={2025} }' chicago: Kopylov, Denis A., Torsten Meier, and Polina R. Sharapova. “Theory of Multimode Squeezed Light Generation in Lossy Media.” Quantum 9 (2025). https://doi.org/10.22331/q-2025-02-04-1621. ieee: 'D. A. Kopylov, T. Meier, and P. R. Sharapova, “Theory of Multimode Squeezed Light Generation in Lossy Media,” Quantum, vol. 9, Art. no. 1621, 2025, doi: 10.22331/q-2025-02-04-1621.' mla: Kopylov, Denis A., et al. “Theory of Multimode Squeezed Light Generation in Lossy Media.” Quantum, vol. 9, 1621, Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften, 2025, doi:10.22331/q-2025-02-04-1621. short: D.A. Kopylov, T. Meier, P.R. Sharapova, Quantum 9 (2025). date_created: 2025-02-05T12:57:37Z date_updated: 2025-09-18T13:22:26Z department: - _id: '15' - _id: '569' - _id: '170' - _id: '293' - _id: '35' - _id: '230' - _id: '623' - _id: '27' doi: 10.22331/q-2025-02-04-1621 intvolume: ' 9' language: - iso: eng project: - _id: '266' name: 'PhoQC: PhoQC: Photonisches Quantencomputing' - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Quantum publication_identifier: issn: - 2521-327X publication_status: published publisher: Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften status: public title: Theory of Multimode Squeezed Light Generation in Lossy Media type: journal_article user_id: '16199' volume: 9 year: '2025' ... --- _id: '61271' author: - first_name: Cedric full_name: Tschöpe, Cedric last_name: Tschöpe citation: ama: 'Tschöpe C. Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern.; 2025.' apa: 'Tschöpe, C. (2025). Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern.' bibtex: '@book{Tschöpe_2025, title={Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern}, author={Tschöpe, Cedric}, year={2025} }' chicago: 'Tschöpe, Cedric. Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern, 2025.' ieee: 'C. Tschöpe, Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern. 2025.' mla: 'Tschöpe, Cedric. Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern. 2025.' short: 'C. Tschöpe, Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern, 2025.' date_created: 2025-09-15T08:11:45Z date_updated: 2025-10-01T08:53:45Z department: - _id: '150' - _id: '624' - _id: '9' language: - iso: ger status: public supervisor: - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 - first_name: Steffen full_name: Jesinghausen, Steffen id: '3959' last_name: Jesinghausen orcid: https://orcid.org/0000-0003-2611-5298 - first_name: Fabian full_name: Neitzel, Fabian id: '72307' last_name: Neitzel orcid: '0009-0004-8412-3645 ' title: 'Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern' type: mastersthesis user_id: '72307' year: '2025' ... --- _id: '61485' author: - first_name: Thomas full_name: Frye, Thomas last_name: Frye citation: ama: Frye T. Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid 12 Für Das Selektive Lasersintern.; 2025. apa: Frye, T. (2025). Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat und zinkbasierten Füllstoffen als synergistische Flammschutzmittel in Polyamid 12 für das selektive Lasersintern. bibtex: '@book{Frye_2025, title={Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat und zinkbasierten Füllstoffen als synergistische Flammschutzmittel in Polyamid 12 für das selektive Lasersintern}, author={Frye, Thomas}, year={2025} }' chicago: Frye, Thomas. Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid 12 Für Das Selektive Lasersintern, 2025. ieee: T. Frye, Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat und zinkbasierten Füllstoffen als synergistische Flammschutzmittel in Polyamid 12 für das selektive Lasersintern. 2025. mla: Frye, Thomas. Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid 12 Für Das Selektive Lasersintern. 2025. short: T. Frye, Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid 12 Für Das Selektive Lasersintern, 2025. date_created: 2025-10-01T08:55:57Z date_updated: 2025-10-01T08:56:00Z department: - _id: '150' - _id: '624' - _id: '9' language: - iso: eng status: public supervisor: - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 - first_name: Steffen full_name: Jesinghausen, Steffen id: '3959' last_name: Jesinghausen orcid: https://orcid.org/0000-0003-2611-5298 - first_name: Fabian full_name: Neitzel, Fabian id: '72307' last_name: Neitzel orcid: '0009-0004-8412-3645 ' title: Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat und zinkbasierten Füllstoffen als synergistische Flammschutzmittel in Polyamid 12 für das selektive Lasersintern type: mastersthesis user_id: '72307' year: '2025' ... --- _id: '60891' abstract: - lang: eng text: Straight dielectric waveguide channels made from slabs of thin-film lithium niobate (TFLN), or lithium niobate on insulator (LNOI), are investigated in the linear regime, for channels of rib and strip type with common trapezoidal cross sections, in Z-cut and X-cut samples at varying on-chip orientation. We clarify the theoretical basis for the waveguides with potentially non-diagonal core permittivity. Symmetry classes can be distinguished that differ in their consequences for potential modal degeneracy and polarization conversion. Our rigorous numerical analysis by means of a finite-element solver takes the anisotropy of the lithium niobate cores rigorously into account. We discuss extensive data for effective indices, polarization properties, and hybridization of guided modes, in single- and multimode channels. Scans over the waveguide width and orientation as primary parameters are complemented by a series of illustrations of vectorial mode profiles. These turn out to be essentially complex in cases of X-cut channels at non-crystal-axis-aligned orientations. author: - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Shahriar full_name: Khan, Shahriar last_name: Khan - first_name: Behnood full_name: Taheri, Behnood last_name: Taheri - first_name: Henna full_name: Farheen, Henna id: '53444' last_name: Farheen orcid: 0000-0001-7730-3489 - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Hammer M, Khan S, Taheri B, Farheen H, Förstner J. TFLN channel waveguides of rib and strip type: Properties of guided modes. Optics Continuum. 2025;4(10):2356. doi:10.1364/optcon.569959' apa: 'Hammer, M., Khan, S., Taheri, B., Farheen, H., & Förstner, J. (2025). TFLN channel waveguides of rib and strip type: Properties of guided modes. Optics Continuum, 4(10), 2356. https://doi.org/10.1364/optcon.569959' bibtex: '@article{Hammer_Khan_Taheri_Farheen_Förstner_2025, title={TFLN channel waveguides of rib and strip type: Properties of guided modes}, volume={4}, DOI={10.1364/optcon.569959}, number={10}, journal={Optics Continuum}, publisher={Optica Publishing Group}, author={Hammer, Manfred and Khan, Shahriar and Taheri, Behnood and Farheen, Henna and Förstner, Jens}, year={2025}, pages={2356} }' chicago: 'Hammer, Manfred, Shahriar Khan, Behnood Taheri, Henna Farheen, and Jens Förstner. “TFLN Channel Waveguides of Rib and Strip Type: Properties of Guided Modes.” Optics Continuum 4, no. 10 (2025): 2356. https://doi.org/10.1364/optcon.569959.' ieee: 'M. Hammer, S. Khan, B. Taheri, H. Farheen, and J. Förstner, “TFLN channel waveguides of rib and strip type: Properties of guided modes,” Optics Continuum, vol. 4, no. 10, p. 2356, 2025, doi: 10.1364/optcon.569959.' mla: 'Hammer, Manfred, et al. “TFLN Channel Waveguides of Rib and Strip Type: Properties of Guided Modes.” Optics Continuum, vol. 4, no. 10, Optica Publishing Group, 2025, p. 2356, doi:10.1364/optcon.569959.' short: M. Hammer, S. Khan, B. Taheri, H. Farheen, J. Förstner, Optics Continuum 4 (2025) 2356. date_created: 2025-08-06T09:36:30Z date_updated: 2025-10-05T11:52:55Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' - _id: '623' doi: 10.1364/optcon.569959 file: - access_level: closed content_type: application/pdf creator: fossie date_created: 2025-10-05T11:48:25Z date_updated: 2025-10-05T11:48:25Z file_id: '61516' file_name: 2025-08 Hammer - Optics Continuum - TFLN channel waveguides of rib and strip type. Properties of guided modes (official version).pdf file_size: 5417636 relation: main_file success: 1 file_date_updated: 2025-10-05T11:48:25Z has_accepted_license: '1' intvolume: ' 4' issue: '10' keyword: - tet_topic_waveguide language: - iso: eng page: '2356' publication: Optics Continuum publication_identifier: issn: - 2770-0208 publication_status: published publisher: Optica Publishing Group status: public title: 'TFLN channel waveguides of rib and strip type: Properties of guided modes' type: journal_article user_id: '158' volume: 4 year: '2025' ... --- _id: '61760' abstract: - lang: eng text: We present a topology-optimized silicon nitride (Si3N4) coupler designed to enhance the coupling efficiency between integrated single-photon emitters and photonic waveguide modes. By leveraging inverse design techniques, we optimize the coupler’s geometry to maximize power transfer while maintaining fabrication feasibility by improving mode overlap and directional emission, addressing the challenge of low coupling efficiency caused by size mismatch and material incompatibility. Simulations demonstrate a substantial enhancement in photon extraction and waveguide coupling. This approach can be extended to other photonic devices, offering a versatile framework for improving quantum light-matter interactions in integrated photonics. author: - first_name: Henna full_name: Farheen, Henna id: '53444' last_name: Farheen orcid: 0000-0001-7730-3489 - first_name: Yuheng full_name: Chen, Yuheng last_name: Chen - first_name: Peigang full_name: Chen, Peigang last_name: Chen - first_name: Artem full_name: Kryvobok, Artem last_name: Kryvobok - first_name: Samuel full_name: Peana, Samuel last_name: Peana - first_name: Alexander full_name: Senichev, Alexander last_name: Senichev - first_name: Vladimir M. full_name: Shalaev, Vladimir M. last_name: Shalaev - first_name: Alexandra full_name: Boltasseva, Alexandra last_name: Boltasseva - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Alexander V. full_name: Kildishev, Alexander V. last_name: Kildishev citation: ama: 'Farheen H, Chen Y, Chen P, et al. Topology-optimized silicon nitride coupler for integrated single-photon emitters. In: Ni X, Cai W, eds. Photonic Computing: From Materials and Devices to Systems and Applications II. SPIE; 2025. doi:10.1117/12.3065734' apa: 'Farheen, H., Chen, Y., Chen, P., Kryvobok, A., Peana, S., Senichev, A., Shalaev, V. M., Boltasseva, A., Förstner, J., & Kildishev, A. V. (2025). Topology-optimized silicon nitride coupler for integrated single-photon emitters. In X. Ni & W. Cai (Eds.), Photonic Computing: From Materials and Devices to Systems and Applications II. SPIE. https://doi.org/10.1117/12.3065734' bibtex: '@inproceedings{Farheen_Chen_Chen_Kryvobok_Peana_Senichev_Shalaev_Boltasseva_Förstner_Kildishev_2025, title={Topology-optimized silicon nitride coupler for integrated single-photon emitters}, DOI={10.1117/12.3065734}, booktitle={Photonic Computing: From Materials and Devices to Systems and Applications II}, publisher={SPIE}, author={Farheen, Henna and Chen, Yuheng and Chen, Peigang and Kryvobok, Artem and Peana, Samuel and Senichev, Alexander and Shalaev, Vladimir M. and Boltasseva, Alexandra and Förstner, Jens and Kildishev, Alexander V.}, editor={Ni, Xingjie and Cai, Wenshan}, year={2025} }' chicago: 'Farheen, Henna, Yuheng Chen, Peigang Chen, Artem Kryvobok, Samuel Peana, Alexander Senichev, Vladimir M. Shalaev, Alexandra Boltasseva, Jens Förstner, and Alexander V. Kildishev. “Topology-Optimized Silicon Nitride Coupler for Integrated Single-Photon Emitters.” In Photonic Computing: From Materials and Devices to Systems and Applications II, edited by Xingjie Ni and Wenshan Cai. SPIE, 2025. https://doi.org/10.1117/12.3065734.' ieee: 'H. Farheen et al., “Topology-optimized silicon nitride coupler for integrated single-photon emitters,” in Photonic Computing: From Materials and Devices to Systems and Applications II, 2025, doi: 10.1117/12.3065734.' mla: 'Farheen, Henna, et al. “Topology-Optimized Silicon Nitride Coupler for Integrated Single-Photon Emitters.” Photonic Computing: From Materials and Devices to Systems and Applications II, edited by Xingjie Ni and Wenshan Cai, SPIE, 2025, doi:10.1117/12.3065734.' short: 'H. Farheen, Y. Chen, P. Chen, A. Kryvobok, S. Peana, A. Senichev, V.M. Shalaev, A. Boltasseva, J. Förstner, A.V. Kildishev, in: X. Ni, W. Cai (Eds.), Photonic Computing: From Materials and Devices to Systems and Applications II, SPIE, 2025.' date_created: 2025-10-08T15:20:13Z date_updated: 2025-10-08T15:22:30Z department: - _id: '61' - _id: '230' - _id: '429' - _id: '623' doi: 10.1117/12.3065734 editor: - first_name: Xingjie full_name: Ni, Xingjie last_name: Ni - first_name: Wenshan full_name: Cai, Wenshan last_name: Cai keyword: - tet_topic_waveguide language: - iso: eng publication: 'Photonic Computing: From Materials and Devices to Systems and Applications II' publication_status: published publisher: SPIE status: public title: Topology-optimized silicon nitride coupler for integrated single-photon emitters type: conference user_id: '158' year: '2025' ... --- _id: '61279' abstract: - lang: eng text: Spin waves represent an important class of low-energy excitations in magnetic solids, which influence the thermodynamic properties and play a major role in technical applications, such as spintronics or magnetic data storage. Despite the enormous advances of ab initio simulations in materials science, quantitative calculations of spin-wave spectra still pose a significant challenge, because the collective nature of the spin dynamics requires an accurate treatment of the Coulomb interaction between the electrons. As a consequence, simple lattice models like the Heisenberg Hamiltonian are still widespread in practical investigations, but modern techniques like time-dependent density-functional theory or many-body perturbation theory also open a route to material-specific spin-wave calculations from first principles. Although both are in principle exact, actual implementations necessarily employ approximations for electronic exchange and correlation as well as additional numerical simplifications. In this review, we recapitulate the theoretical foundations of ab initio spin-wave calculations and analyze the common approximations that underlie present implementations. In addition, we survey the available results for spin-wave dispersions of various magnetic materials and compare the performance of different computational approaches. In this way, we provide an overview of the present state of the art and identify directions for further developments. article_number: '4431' article_type: review author: - first_name: Michael full_name: Neugum, Michael id: '80813' last_name: Neugum - first_name: Arno full_name: Schindlmayr, Arno id: '458' last_name: Schindlmayr orcid: 0000-0002-4855-071X citation: ama: 'Neugum M, Schindlmayr A. Ab initio calculations of spin waves: A review of theoretical approaches and applications. Materials. 2025;18(18). doi:10.3390/ma18184431' apa: 'Neugum, M., & Schindlmayr, A. (2025). Ab initio calculations of spin waves: A review of theoretical approaches and applications. Materials, 18(18), Article 4431. https://doi.org/10.3390/ma18184431' bibtex: '@article{Neugum_Schindlmayr_2025, title={Ab initio calculations of spin waves: A review of theoretical approaches and applications}, volume={18}, DOI={10.3390/ma18184431}, number={184431}, journal={Materials}, publisher={MDPI}, author={Neugum, Michael and Schindlmayr, Arno}, year={2025} }' chicago: 'Neugum, Michael, and Arno Schindlmayr. “Ab Initio Calculations of Spin Waves: A Review of Theoretical Approaches and Applications.” Materials 18, no. 18 (2025). https://doi.org/10.3390/ma18184431.' ieee: 'M. Neugum and A. Schindlmayr, “Ab initio calculations of spin waves: A review of theoretical approaches and applications,” Materials, vol. 18, no. 18, Art. no. 4431, 2025, doi: 10.3390/ma18184431.' mla: 'Neugum, Michael, and Arno Schindlmayr. “Ab Initio Calculations of Spin Waves: A Review of Theoretical Approaches and Applications.” Materials, vol. 18, no. 18, 4431, MDPI, 2025, doi:10.3390/ma18184431.' short: M. Neugum, A. Schindlmayr, Materials 18 (2025). date_created: 2025-09-15T16:14:59Z date_updated: 2025-10-10T07:31:23Z ddc: - '530' department: - _id: '296' - _id: '15' - _id: '170' - _id: '35' - _id: '230' doi: 10.3390/ma18184431 external_id: isi: - '001580599300001' file: - access_level: open_access content_type: application/pdf creator: schindlm date_created: 2025-09-24T07:19:36Z date_updated: 2025-09-24T07:19:36Z description: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) file_id: '61422' file_name: materials-18-04431.pdf file_size: 611341 relation: main_file title: 'Ab initio calculations of spin waves: A review of theoretical approaches and applications' file_date_updated: 2025-09-24T07:19:36Z has_accepted_license: '1' intvolume: ' 18' isi: '1' issue: '18' language: - iso: eng oa: '1' publication: Materials publication_identifier: eissn: - 1996-1944 publication_status: published publisher: MDPI quality_controlled: '1' status: public title: 'Ab initio calculations of spin waves: A review of theoretical approaches and applications' type: journal_article user_id: '458' volume: 18 year: '2025' ... --- _id: '60959' abstract: - lang: eng text: Miller's rule originated as an empirical relation between the nonlinear and linear optical coefficients of materials. It is now accepted as a useful tool for guiding experiments and computational materials discovery, but its theoretical foundation had long been limited to a derivation for the classical Lorentz model with a weak anharmonic perturbation. Recently, we developed a mathematical framework which enabled us to prove that Miller's rule is equally valid for quantum anharmonic oscillators, despite different dynamics due to zero-point fluctuations and further quantum-mechanical effects. However, our previous derivation applied only to one-dimensional oscillators and to the special case of second- and third-harmonic generation in a monochromatic electric field. Here we extend the proof to three-dimensional quantum anharmonic oscillators and also treat all orders of the nonlinear response to an arbitrary multi-frequency field. This makes the results applicable to a much larger range of physical systems and nonlinear optical processes. The obtained generalized Miller formulae rigorously express all tensor elements of the frequency-dependent nonlinear susceptibilities in terms of the linear susceptibility and thus allow a computationally inexpensive quantitative prediction of arbitrary parametric frequency-mixing processes from a small initial dataset. article_number: '34' article_type: original author: - first_name: Maximilian Tim full_name: Meyer, Maximilian Tim id: '77895' last_name: Meyer orcid: 0009-0003-4899-0920 - first_name: Arno full_name: Schindlmayr, Arno id: '458' last_name: Schindlmayr orcid: 0000-0002-4855-071X citation: ama: Meyer MT, Schindlmayr A. Generalized Miller formulae for quantum anharmonic oscillators. Dynamics. 2025;5(3). doi:10.3390/dynamics5030034 apa: Meyer, M. T., & Schindlmayr, A. (2025). Generalized Miller formulae for quantum anharmonic oscillators. Dynamics, 5(3), Article 34. https://doi.org/10.3390/dynamics5030034 bibtex: '@article{Meyer_Schindlmayr_2025, title={Generalized Miller formulae for quantum anharmonic oscillators}, volume={5}, DOI={10.3390/dynamics5030034}, number={334}, journal={Dynamics}, publisher={MDPI}, author={Meyer, Maximilian Tim and Schindlmayr, Arno}, year={2025} }' chicago: Meyer, Maximilian Tim, and Arno Schindlmayr. “Generalized Miller Formulae for Quantum Anharmonic Oscillators.” Dynamics 5, no. 3 (2025). https://doi.org/10.3390/dynamics5030034. ieee: 'M. T. Meyer and A. Schindlmayr, “Generalized Miller formulae for quantum anharmonic oscillators,” Dynamics, vol. 5, no. 3, Art. no. 34, 2025, doi: 10.3390/dynamics5030034.' mla: Meyer, Maximilian Tim, and Arno Schindlmayr. “Generalized Miller Formulae for Quantum Anharmonic Oscillators.” Dynamics, vol. 5, no. 3, 34, MDPI, 2025, doi:10.3390/dynamics5030034. short: M.T. Meyer, A. Schindlmayr, Dynamics 5 (2025). date_created: 2025-08-20T09:46:13Z date_updated: 2025-10-10T07:29:36Z ddc: - '530' department: - _id: '296' - _id: '230' - _id: '15' - _id: '170' - _id: '35' doi: 10.3390/dynamics5030034 external_id: isi: - '001581270200001' file: - access_level: open_access content_type: application/pdf creator: schindlm date_created: 2025-08-28T12:23:26Z date_updated: 2025-08-28T12:27:05Z description: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) file_id: '61056' file_name: dynamics-05-00034.pdf file_size: 375897 relation: main_file title: Generalized Miller formulae for quantum anharmonic oscillators file_date_updated: 2025-08-28T12:27:05Z has_accepted_license: '1' intvolume: ' 5' isi: '1' issue: '3' language: - iso: eng oa: '1' publication: Dynamics publication_identifier: eissn: - 2673-8716 publication_status: published publisher: MDPI quality_controlled: '1' status: public title: Generalized Miller formulae for quantum anharmonic oscillators type: journal_article user_id: '458' volume: 5 year: '2025' ... --- _id: '61138' article_number: '434' author: - first_name: Yingjie full_name: Zhan, Yingjie id: '93591' last_name: Zhan - first_name: Ismail full_name: Caylak, Ismail id: '75' last_name: Caylak - first_name: Richard full_name: Ostwald, Richard id: '106876' last_name: Ostwald orcid: 0000-0003-2147-8444 - first_name: Enrico full_name: Barth, Enrico last_name: Barth - first_name: Eckart full_name: Uhlmann, Eckart last_name: Uhlmann citation: ama: 'Zhan Y, Caylak I, Ostwald R, Barth E, Uhlmann E. Damage-incorporated four-step mean-field method for simulating CFRP machining: a novel algorithmic approach. Multiscale and Multidisciplinary Modeling, Experiments and Design. 2025;8(10). doi:10.1007/s41939-025-01026-4' apa: 'Zhan, Y., Caylak, I., Ostwald, R., Barth, E., & Uhlmann, E. (2025). Damage-incorporated four-step mean-field method for simulating CFRP machining: a novel algorithmic approach. Multiscale and Multidisciplinary Modeling, Experiments and Design, 8(10), Article 434. https://doi.org/10.1007/s41939-025-01026-4' bibtex: '@article{Zhan_Caylak_Ostwald_Barth_Uhlmann_2025, title={Damage-incorporated four-step mean-field method for simulating CFRP machining: a novel algorithmic approach}, volume={8}, DOI={10.1007/s41939-025-01026-4}, number={10434}, journal={Multiscale and Multidisciplinary Modeling, Experiments and Design}, publisher={Springer Science and Business Media LLC}, author={Zhan, Yingjie and Caylak, Ismail and Ostwald, Richard and Barth, Enrico and Uhlmann, Eckart}, year={2025} }' chicago: 'Zhan, Yingjie, Ismail Caylak, Richard Ostwald, Enrico Barth, and Eckart Uhlmann. “Damage-Incorporated Four-Step Mean-Field Method for Simulating CFRP Machining: A Novel Algorithmic Approach.” Multiscale and Multidisciplinary Modeling, Experiments and Design 8, no. 10 (2025). https://doi.org/10.1007/s41939-025-01026-4.' ieee: 'Y. Zhan, I. Caylak, R. Ostwald, E. Barth, and E. Uhlmann, “Damage-incorporated four-step mean-field method for simulating CFRP machining: a novel algorithmic approach,” Multiscale and Multidisciplinary Modeling, Experiments and Design, vol. 8, no. 10, Art. no. 434, 2025, doi: 10.1007/s41939-025-01026-4.' mla: 'Zhan, Yingjie, et al. “Damage-Incorporated Four-Step Mean-Field Method for Simulating CFRP Machining: A Novel Algorithmic Approach.” Multiscale and Multidisciplinary Modeling, Experiments and Design, vol. 8, no. 10, 434, Springer Science and Business Media LLC, 2025, doi:10.1007/s41939-025-01026-4.' short: Y. Zhan, I. Caylak, R. Ostwald, E. Barth, E. Uhlmann, Multiscale and Multidisciplinary Modeling, Experiments and Design 8 (2025). date_created: 2025-09-05T07:40:31Z date_updated: 2025-10-20T12:05:57Z department: - _id: '9' - _id: '952' - _id: '321' doi: 10.1007/s41939-025-01026-4 intvolume: ' 8' issue: '10' language: - iso: eng publication: Multiscale and Multidisciplinary Modeling, Experiments and Design publication_identifier: issn: - 2520-8160 - 2520-8179 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: 'Damage-incorporated four-step mean-field method for simulating CFRP machining: a novel algorithmic approach' type: journal_article user_id: '85414' volume: 8 year: '2025' ... --- _id: '62034' abstract: - lang: eng text: 'Effective single-particle theories, such as Hartree–Fock, density functional theory, and tight-binding, are limited by the computational cost of the self-consistent field (SCF) procedure, which typically scales cubically with the system size. This makes large-scale applications impractical without specialized algorithms and hardware. Here, we present the submatrix and graphical processing unit (GPU)-accelerated software implementation of the PTB tight-binding potential, realized in the open-source ptb codebase [M. Mueller, A. Katbashev, and S. Ehlert (2025). “grimme-lab/ptb: v3.8.1,” Zenodo. https://zenodo.org/records/17015872]. We first benchmark a traditional diagonalization-based SCF solver against density-matrix-based purification approaches, systematically varying both system size and computer hardware. Our findings show that the usage of GPUs permits shifting the boundaries to much larger systems than previously thought feasible, achieving an overall 10–15-fold performance speedup. Second, we introduce the implementation of a decomposition-type submatrix method, specifically designed for efficient operation on mid- to large-sized systems, to address the computational overhead associated with full-system diagonalization. We demonstrate that, from a certain dimension (≈104 basis functions) on, our submatrix method reduces the overall computational cost while maintaining acceptable numerical accuracy. Our study demonstrates the significance of the interplay between modern hardware, algorithmic considerations, and novel tight-binding methods, paving the way for further development in this direction.' article_number: '132501' author: - first_name: Abylay full_name: Katbashev, Abylay last_name: Katbashev - first_name: Robert full_name: Schade, Robert id: '75963' last_name: Schade orcid: 0000-0002-6268-5397 - first_name: Michael full_name: Laß, Michael id: '24135' last_name: Laß orcid: 0000-0002-5708-7632 - first_name: Marcel full_name: Müller, Marcel last_name: Müller - first_name: Stefan full_name: Grimme, Stefan last_name: Grimme - first_name: Andreas full_name: Hansen, Andreas last_name: Hansen - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne citation: ama: Katbashev A, Schade R, Laß M, et al. Submatrix and GPU-accelerated implementation of density matrix tight-binding. The Journal of Chemical Physics. 2025;163(13). doi:10.1063/5.0271379 apa: Katbashev, A., Schade, R., Laß, M., Müller, M., Grimme, S., Hansen, A., & Kühne, T. (2025). Submatrix and GPU-accelerated implementation of density matrix tight-binding. The Journal of Chemical Physics, 163(13), Article 132501. https://doi.org/10.1063/5.0271379 bibtex: '@article{Katbashev_Schade_Laß_Müller_Grimme_Hansen_Kühne_2025, title={Submatrix and GPU-accelerated implementation of density matrix tight-binding}, volume={163}, DOI={10.1063/5.0271379}, number={13132501}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Katbashev, Abylay and Schade, Robert and Laß, Michael and Müller, Marcel and Grimme, Stefan and Hansen, Andreas and Kühne, Thomas}, year={2025} }' chicago: Katbashev, Abylay, Robert Schade, Michael Laß, Marcel Müller, Stefan Grimme, Andreas Hansen, and Thomas Kühne. “Submatrix and GPU-Accelerated Implementation of Density Matrix Tight-Binding.” The Journal of Chemical Physics 163, no. 13 (2025). https://doi.org/10.1063/5.0271379. ieee: 'A. Katbashev et al., “Submatrix and GPU-accelerated implementation of density matrix tight-binding,” The Journal of Chemical Physics, vol. 163, no. 13, Art. no. 132501, 2025, doi: 10.1063/5.0271379.' mla: Katbashev, Abylay, et al. “Submatrix and GPU-Accelerated Implementation of Density Matrix Tight-Binding.” The Journal of Chemical Physics, vol. 163, no. 13, 132501, AIP Publishing, 2025, doi:10.1063/5.0271379. short: A. Katbashev, R. Schade, M. Laß, M. Müller, S. Grimme, A. Hansen, T. Kühne, The Journal of Chemical Physics 163 (2025). date_created: 2025-11-01T00:41:50Z date_updated: 2025-11-01T00:43:19Z department: - _id: '27' doi: 10.1063/5.0271379 intvolume: ' 163' issue: '13' language: - iso: eng project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: The Journal of Chemical Physics publication_identifier: issn: - 0021-9606 - 1089-7690 publication_status: published publisher: AIP Publishing status: public title: Submatrix and GPU-accelerated implementation of density matrix tight-binding type: journal_article user_id: '75963' volume: 163 year: '2025' ... --- _id: '62064' abstract: - lang: eng text: SYCL is an open standard for targeting heterogeneous hardware from C++. In this work, we evaluate a SYCL implementation for a discontinuous Galerkin discretization of the 2D shallow water equations targeting CPUs, GPUs, and also FPGAs. The discretization uses polynomial orders zero to two on unstructured triangular meshes. Separating memory accesses from the numerical code allow us to optimize data accesses for the target architecture. A performance analysis shows good portability across x86 and ARM CPUs, GPUs from different vendors, and even two variants of Intel Stratix 10 FPGAs. Measuring the energy to solution shows that GPUs yield an up to 10x higher energy efficiency in terms of degrees of freedom per joule compared to CPUs. With custom designed caches, FPGAs offer a meaningful complement to the other architectures with particularly good computational performance on smaller meshes. FPGAs with High Bandwidth Memory are less affected by bandwidth issues and have similar energy efficiency as latest generation CPUs. article_number: '772' author: - first_name: Markus full_name: Büttner, Markus last_name: Büttner - first_name: Christoph full_name: Alt, Christoph id: '100625' last_name: Alt - first_name: Tobias full_name: Kenter, Tobias id: '3145' last_name: Kenter - first_name: Harald full_name: Köstler, Harald last_name: Köstler - first_name: Christian full_name: Plessl, Christian id: '16153' last_name: Plessl orcid: 0000-0001-5728-9982 - first_name: Vadym full_name: Aizinger, Vadym last_name: Aizinger citation: ama: Büttner M, Alt C, Kenter T, Köstler H, Plessl C, Aizinger V. Analyzing performance portability for a SYCL implementation of the 2D shallow water equations. The Journal of Supercomputing. 2025;81(6). doi:10.1007/s11227-025-07063-7 apa: Büttner, M., Alt, C., Kenter, T., Köstler, H., Plessl, C., & Aizinger, V. (2025). Analyzing performance portability for a SYCL implementation of the 2D shallow water equations. The Journal of Supercomputing, 81(6), Article 772. https://doi.org/10.1007/s11227-025-07063-7 bibtex: '@article{Büttner_Alt_Kenter_Köstler_Plessl_Aizinger_2025, title={Analyzing performance portability for a SYCL implementation of the 2D shallow water equations}, volume={81}, DOI={10.1007/s11227-025-07063-7}, number={6772}, journal={The Journal of Supercomputing}, publisher={Springer Science and Business Media LLC}, author={Büttner, Markus and Alt, Christoph and Kenter, Tobias and Köstler, Harald and Plessl, Christian and Aizinger, Vadym}, year={2025} }' chicago: Büttner, Markus, Christoph Alt, Tobias Kenter, Harald Köstler, Christian Plessl, and Vadym Aizinger. “Analyzing Performance Portability for a SYCL Implementation of the 2D Shallow Water Equations.” The Journal of Supercomputing 81, no. 6 (2025). https://doi.org/10.1007/s11227-025-07063-7. ieee: 'M. Büttner, C. Alt, T. Kenter, H. Köstler, C. Plessl, and V. Aizinger, “Analyzing performance portability for a SYCL implementation of the 2D shallow water equations,” The Journal of Supercomputing, vol. 81, no. 6, Art. no. 772, 2025, doi: 10.1007/s11227-025-07063-7.' mla: Büttner, Markus, et al. “Analyzing Performance Portability for a SYCL Implementation of the 2D Shallow Water Equations.” The Journal of Supercomputing, vol. 81, no. 6, 772, Springer Science and Business Media LLC, 2025, doi:10.1007/s11227-025-07063-7. short: M. Büttner, C. Alt, T. Kenter, H. Köstler, C. Plessl, V. Aizinger, The Journal of Supercomputing 81 (2025). date_created: 2025-11-04T09:37:50Z date_updated: 2025-11-04T09:48:10Z department: - _id: '27' - _id: '518' doi: 10.1007/s11227-025-07063-7 intvolume: ' 81' issue: '6' language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: The Journal of Supercomputing publication_identifier: issn: - 1573-0484 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Analyzing performance portability for a SYCL implementation of the 2D shallow water equations type: journal_article user_id: '3145' volume: 81 year: '2025' ... --- _id: '62066' abstract: - lang: eng text: In the context of high-performance computing (HPC) for distributed workloads, individual field-programmable gate arrays (FPGAs) need efficient ways to exchange data, which requires network infrastructure and software abstractions. Dedicated multi-FPGA clusters provide inter-FPGA networks for direct device to device communication. The oneAPI high-level synthesis toolchain offers I/O pipes to allow user kernels to interact with the networking ports of the FPGA board. In this work, we evaluate using oneAPI I/O pipes for direct FPGA-to-FPGA communication by scaling a SYCL implementation of a Jacobi solver on up to 25 FPGAs in the Noctua 2 cluster. We see good results in weak and strong scaling experiments. author: - first_name: Christoph full_name: Alt, Christoph id: '100625' last_name: Alt - first_name: Christian full_name: Plessl, Christian id: '16153' last_name: Plessl orcid: 0000-0001-5728-9982 - first_name: Tobias full_name: Kenter, Tobias id: '3145' last_name: Kenter citation: ama: 'Alt C, Plessl C, Kenter T. Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs. In: Proceedings of the 13th International Workshop on OpenCL and SYCL. IWOCL ’25. Association for Computing Machinery; 2025. doi:10.1145/3731125.3731131' apa: Alt, C., Plessl, C., & Kenter, T. (2025). Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs. Proceedings of the 13th International Workshop on OpenCL and SYCL. https://doi.org/10.1145/3731125.3731131 bibtex: '@inproceedings{Alt_Plessl_Kenter_2025, place={New York, NY, USA}, series={IWOCL ’25}, title={Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs}, DOI={10.1145/3731125.3731131}, booktitle={Proceedings of the 13th International Workshop on OpenCL and SYCL}, publisher={Association for Computing Machinery}, author={Alt, Christoph and Plessl, Christian and Kenter, Tobias}, year={2025}, collection={IWOCL ’25} }' chicago: 'Alt, Christoph, Christian Plessl, and Tobias Kenter. “Evaluating OneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to Multiple FPGAs.” In Proceedings of the 13th International Workshop on OpenCL and SYCL. IWOCL ’25. New York, NY, USA: Association for Computing Machinery, 2025. https://doi.org/10.1145/3731125.3731131.' ieee: 'C. Alt, C. Plessl, and T. Kenter, “Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs,” 2025, doi: 10.1145/3731125.3731131.' mla: Alt, Christoph, et al. “Evaluating OneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to Multiple FPGAs.” Proceedings of the 13th International Workshop on OpenCL and SYCL, Association for Computing Machinery, 2025, doi:10.1145/3731125.3731131. short: 'C. Alt, C. Plessl, T. Kenter, in: Proceedings of the 13th International Workshop on OpenCL and SYCL, Association for Computing Machinery, New York, NY, USA, 2025.' date_created: 2025-11-04T09:45:23Z date_updated: 2025-11-04T09:47:26Z department: - _id: '27' - _id: '518' doi: 10.1145/3731125.3731131 keyword: - Multi-FPGA - High-level Synthesis - oneAPI - FPGA language: - iso: eng main_file_link: - open_access: '1' oa: '1' place: New York, NY, USA project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Proceedings of the 13th International Workshop on OpenCL and SYCL publication_identifier: isbn: - '9798400713606' publisher: Association for Computing Machinery quality_controlled: '1' series_title: IWOCL ’25 status: public title: Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs type: conference user_id: '3145' year: '2025' ... --- _id: '62065' author: - first_name: Shivam full_name: Sundriyal, Shivam last_name: Sundriyal - first_name: Markus full_name: Büttner, Markus last_name: Büttner - first_name: Christoph full_name: Alt, Christoph id: '100625' last_name: Alt - first_name: Tobias full_name: Kenter, Tobias id: '3145' last_name: Kenter - first_name: Vadym full_name: Aizinger, Vadym last_name: Aizinger citation: ama: 'Sundriyal S, Büttner M, Alt C, Kenter T, Aizinger V. Adaptive Spectral Block Floating Point for Discontinuous Galerkin Methods. In: 2025 IEEE High Performance Extreme Computing Conference (HPEC). IEEE; 2025. doi:10.1109/hpec67600.2025.11196195' apa: Sundriyal, S., Büttner, M., Alt, C., Kenter, T., & Aizinger, V. (2025). Adaptive Spectral Block Floating Point for Discontinuous Galerkin Methods. 2025 IEEE High Performance Extreme Computing Conference (HPEC). https://doi.org/10.1109/hpec67600.2025.11196195 bibtex: '@inproceedings{Sundriyal_Büttner_Alt_Kenter_Aizinger_2025, title={Adaptive Spectral Block Floating Point for Discontinuous Galerkin Methods}, DOI={10.1109/hpec67600.2025.11196195}, booktitle={2025 IEEE High Performance Extreme Computing Conference (HPEC)}, publisher={IEEE}, author={Sundriyal, Shivam and Büttner, Markus and Alt, Christoph and Kenter, Tobias and Aizinger, Vadym}, year={2025} }' chicago: Sundriyal, Shivam, Markus Büttner, Christoph Alt, Tobias Kenter, and Vadym Aizinger. “Adaptive Spectral Block Floating Point for Discontinuous Galerkin Methods.” In 2025 IEEE High Performance Extreme Computing Conference (HPEC). IEEE, 2025. https://doi.org/10.1109/hpec67600.2025.11196195. ieee: 'S. Sundriyal, M. Büttner, C. Alt, T. Kenter, and V. Aizinger, “Adaptive Spectral Block Floating Point for Discontinuous Galerkin Methods,” 2025, doi: 10.1109/hpec67600.2025.11196195.' mla: Sundriyal, Shivam, et al. “Adaptive Spectral Block Floating Point for Discontinuous Galerkin Methods.” 2025 IEEE High Performance Extreme Computing Conference (HPEC), IEEE, 2025, doi:10.1109/hpec67600.2025.11196195. short: 'S. Sundriyal, M. Büttner, C. Alt, T. Kenter, V. Aizinger, in: 2025 IEEE High Performance Extreme Computing Conference (HPEC), IEEE, 2025.' date_created: 2025-11-04T09:43:18Z date_updated: 2025-11-04T09:48:46Z department: - _id: '27' - _id: '518' doi: 10.1109/hpec67600.2025.11196195 language: - iso: eng project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: 2025 IEEE High Performance Extreme Computing Conference (HPEC) publication_status: published publisher: IEEE quality_controlled: '1' status: public title: Adaptive Spectral Block Floating Point for Discontinuous Galerkin Methods type: conference user_id: '3145' year: '2025' ... --- _id: '62166' article_number: '131758' author: - first_name: Tim full_name: Prüßner, Tim last_name: Prüßner - first_name: Kay-Peter full_name: Hoyer, Kay-Peter id: '48411' last_name: Hoyer - first_name: Nadine full_name: Buitkamp, Nadine id: '1449' last_name: Buitkamp - first_name: Pascal full_name: Vieth, Pascal last_name: Vieth - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier citation: ama: Prüßner T, Hoyer K-P, Buitkamp N, Vieth P, Grundmeier G. Surface functionalisation of additively manufactured AlSi10Mg by organophosphonic acid and PDMS grafting. Materials Chemistry and Physics. 2025;349. doi:10.1016/j.matchemphys.2025.131758 apa: Prüßner, T., Hoyer, K.-P., Buitkamp, N., Vieth, P., & Grundmeier, G. (2025). Surface functionalisation of additively manufactured AlSi10Mg by organophosphonic acid and PDMS grafting. Materials Chemistry and Physics, 349, Article 131758. https://doi.org/10.1016/j.matchemphys.2025.131758 bibtex: '@article{Prüßner_Hoyer_Buitkamp_Vieth_Grundmeier_2025, title={Surface functionalisation of additively manufactured AlSi10Mg by organophosphonic acid and PDMS grafting}, volume={349}, DOI={10.1016/j.matchemphys.2025.131758}, number={131758}, journal={Materials Chemistry and Physics}, publisher={Elsevier BV}, author={Prüßner, Tim and Hoyer, Kay-Peter and Buitkamp, Nadine and Vieth, Pascal and Grundmeier, Guido}, year={2025} }' chicago: Prüßner, Tim, Kay-Peter Hoyer, Nadine Buitkamp, Pascal Vieth, and Guido Grundmeier. “Surface Functionalisation of Additively Manufactured AlSi10Mg by Organophosphonic Acid and PDMS Grafting.” Materials Chemistry and Physics 349 (2025). https://doi.org/10.1016/j.matchemphys.2025.131758. ieee: 'T. Prüßner, K.-P. Hoyer, N. Buitkamp, P. Vieth, and G. Grundmeier, “Surface functionalisation of additively manufactured AlSi10Mg by organophosphonic acid and PDMS grafting,” Materials Chemistry and Physics, vol. 349, Art. no. 131758, 2025, doi: 10.1016/j.matchemphys.2025.131758.' mla: Prüßner, Tim, et al. “Surface Functionalisation of Additively Manufactured AlSi10Mg by Organophosphonic Acid and PDMS Grafting.” Materials Chemistry and Physics, vol. 349, 131758, Elsevier BV, 2025, doi:10.1016/j.matchemphys.2025.131758. short: T. Prüßner, K.-P. Hoyer, N. Buitkamp, P. Vieth, G. Grundmeier, Materials Chemistry and Physics 349 (2025). date_created: 2025-11-12T07:33:04Z date_updated: 2025-11-12T07:34:26Z department: - _id: '9' - _id: '158' - _id: '321' doi: 10.1016/j.matchemphys.2025.131758 intvolume: ' 349' language: - iso: eng publication: Materials Chemistry and Physics publication_identifier: issn: - 0254-0584 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Surface functionalisation of additively manufactured AlSi10Mg by organophosphonic acid and PDMS grafting type: journal_article user_id: '48411' volume: 349 year: '2025' ... --- _id: '62181' abstract: - lang: eng text: This research investigates how Artificial Intelligence (AI) can be systematically integrated into existing business processes by combining suitable competencies with graphical AI workflow modelling. While AI offers a high potential for automation and increased efficiency, its implementation often fails due to a lack of interdisciplinary competencies that bridge the gap between domain expertise and IT know-how. Low-code platforms and visual modelling tools are increasingly recognised as enablers, empowering non-programmers to intuitively create graphical AI- based workflows. Nevertheless, specific competencies are required to realise the full potential of AI, the domain specific knowledge and align technical understanding with AI capabilities. The paper reviews the state of the art in AI-driven business process automation and competencies for visual low-code approaches. It then presents a practical solution to identify and systematise essential competence areas. Based on this, a practical competence model is developed to support the design of user-friendly, AI-enabled workflows. This is tested in a practical application context — emergency management — where it supports critical decision-making processes and is validated through expert feedback. The study concludes by offering actionable recommendations to help organisations foster the necessary competencies and methods for competently integrating AI into their digital processes. author: - first_name: Iris full_name: Gräßler, Iris id: '47565' last_name: Gräßler orcid: 0000-0001-5765-971X - first_name: Deniz full_name: Özcan, Deniz id: '58595' last_name: Özcan citation: ama: 'Gräßler I, Özcan D. Graphical AI workflow modelling: Identifying relevant competencies in AI-based automation of business processes. In: AHFE International. Vol 198. AHFE International; 2025. doi:10.54941/ahfe1006785' apa: 'Gräßler, I., & Özcan, D. (2025). Graphical AI workflow modelling: Identifying relevant competencies in AI-based automation of business processes. AHFE International, 198. https://doi.org/10.54941/ahfe1006785' bibtex: '@inproceedings{Gräßler_Özcan_2025, title={Graphical AI workflow modelling: Identifying relevant competencies in AI-based automation of business processes}, volume={198}, DOI={10.54941/ahfe1006785}, booktitle={AHFE International}, publisher={AHFE International}, author={Gräßler, Iris and Özcan, Deniz}, year={2025} }' chicago: 'Gräßler, Iris, and Deniz Özcan. “Graphical AI Workflow Modelling: Identifying Relevant Competencies in AI-Based Automation of Business Processes.” In AHFE International, Vol. 198. AHFE International, 2025. https://doi.org/10.54941/ahfe1006785.' ieee: 'I. Gräßler and D. Özcan, “Graphical AI workflow modelling: Identifying relevant competencies in AI-based automation of business processes,” in AHFE International, Split, 2025, vol. 198, doi: 10.54941/ahfe1006785.' mla: 'Gräßler, Iris, and Deniz Özcan. “Graphical AI Workflow Modelling: Identifying Relevant Competencies in AI-Based Automation of Business Processes.” AHFE International, vol. 198, AHFE International, 2025, doi:10.54941/ahfe1006785.' short: 'I. Gräßler, D. Özcan, in: AHFE International, AHFE International, 2025.' conference: end_date: 2025-09-24 location: Split name: '7th International Conference on Human Systems Engineering and Design: Future Trends and Applications (IHSED 2025)' start_date: 2025-09-22 date_created: 2025-11-13T16:37:59Z date_updated: 2025-11-13T16:41:39Z department: - _id: '43' - _id: '9' - _id: '26' - _id: '152' doi: 10.54941/ahfe1006785 intvolume: ' 198' language: - iso: eng publication: AHFE International publication_identifier: issn: - 2771-0718 publication_status: published publisher: AHFE International quality_controlled: '1' status: public title: 'Graphical AI workflow modelling: Identifying relevant competencies in AI-based automation of business processes' type: conference user_id: '58595' volume: 198 year: '2025' ... --- _id: '62182' abstract: - lang: eng text: '

Executive summary Die vorliegende Zukunftsstudie „Automation 2035“ gibt einen Ausblick auf die Entwicklung der Automatisierungstechnik in den nächsten 10 Jahren. Neben der Beschreibung von Trends wie Kreislaufwirtschaft, Automatisierung der Märkte, Biologisierung, autonome Systeme und Robotik sowie IT-Sicherheit wird die zu erwartende Veränderung in der Bildung beschrieben. Dazu verwenden wir Methoden der Zukunftsforschung und arbeiten mit der Szenarientechnik, um Zukunftsperspektiven der Automation aufzuzeigen. Personas werden eingesetzt, um die zukünftigen Entwicklungen plastisch aus den Augen der Personen im Jahr 2025 und in der Zukunft im Jahr 2035 zu beschreiben. Schlüsselthemen und Trends: ... ... Inhalt Executive summary 1 1 Einführung 3 2 Zukunftsfelder für die Automatisierungstechnik 2035 4 2.1 Kreislaufwirtschaft 4 2.2 Automatisierung der Märkte 7 2.3 Biologisierung 8 2.4 Autonome Systeme und Robotik 10 2.5 Security 12 2.6 Veränderung der Ausbildung 13 3 Szenario der Automation 2035 16 4 Personas 18 4.1 Unternehmer 18 4.2 Ingenieurin 19 4.3 Schüler 20 5 Thesen und Ausblick 22 Methodik 24 Autorenteam 25 Schrifttum 26...

' alternative_title: - VDI-Studie author: - first_name: Iris full_name: Gräßler, Iris id: '47565' last_name: Gräßler orcid: 0000-0001-5765-971X - first_name: Deniz full_name: Özcan, Deniz id: '58595' last_name: Özcan - first_name: Alena Marie full_name: Tusek, Alena Marie id: '59370' last_name: Tusek - first_name: Attila full_name: Bilgic, Attila last_name: Bilgic - first_name: Christian full_name: Lange, Christian last_name: Lange - first_name: Christian full_name: Stich, Christian last_name: Stich - first_name: Christine full_name: Maul, Christine last_name: Maul - first_name: Michael full_name: Heizmann, Michael last_name: Heizmann - first_name: Michael full_name: Weyrich, Michael last_name: Weyrich - first_name: Sascha full_name: Dessel,, Sascha last_name: Dessel, - first_name: Torben full_name: Miny, Torben last_name: Miny - first_name: Ulrich full_name: Jumar, Ulrich last_name: Jumar citation: ama: Gräßler I, Özcan D, Tusek AM, et al. Automation 2035. VDI Verlag; 2025. doi:10.51202/9783911670180 apa: Gräßler, I., Özcan, D., Tusek, A. M., Bilgic, A., Lange, C., Stich, C., Maul, C., Heizmann, M., Weyrich, M., Dessel, S., Miny, T., & Jumar, U. (2025). Automation 2035. VDI Verlag. https://doi.org/10.51202/9783911670180 bibtex: '@book{Gräßler_Özcan_Tusek_Bilgic_Lange_Stich_Maul_Heizmann_Weyrich_Dessel,_et al._2025, title={Automation 2035}, DOI={10.51202/9783911670180}, publisher={VDI Verlag}, author={Gräßler, Iris and Özcan, Deniz and Tusek, Alena Marie and Bilgic, Attila and Lange, Christian and Stich, Christian and Maul, Christine and Heizmann, Michael and Weyrich, Michael and Dessel, Sascha and et al.}, year={2025} }' chicago: Gräßler, Iris, Deniz Özcan, Alena Marie Tusek, Attila Bilgic, Christian Lange, Christian Stich, Christine Maul, et al. Automation 2035. VDI Verlag, 2025. https://doi.org/10.51202/9783911670180. ieee: I. Gräßler et al., Automation 2035. VDI Verlag, 2025. mla: Gräßler, Iris, et al. Automation 2035. VDI Verlag, 2025, doi:10.51202/9783911670180. short: I. Gräßler, D. Özcan, A.M. Tusek, A. Bilgic, C. Lange, C. Stich, C. Maul, M. Heizmann, M. Weyrich, S. Dessel, T. Miny, U. Jumar, Automation 2035, VDI Verlag, 2025. date_created: 2025-11-13T16:43:05Z date_updated: 2025-11-13T16:48:43Z department: - _id: '43' - _id: '9' - _id: '26' - _id: '152' doi: 10.51202/9783911670180 language: - iso: eng publication_identifier: isbn: - '9783911670180' publication_status: published publisher: VDI Verlag quality_controlled: '1' status: public title: Automation 2035 type: book user_id: '58595' year: '2025' ... --- _id: '61517' author: - first_name: Suzana full_name: Alpsancar, Suzana id: '93637' last_name: Alpsancar citation: ama: 'Alpsancar S. Algorithmische Kulturen des Pflanzensammelns? Das Beispiel der Computerisierung des Botanischen Gartens und Botanischen Museums Berlin. In: Hashagen U, Seising R, eds. Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung. Die blaue Stunde der Informatik. Springer; 2025:327–365. doi:10.1007/978-3-658-35560-9_14' apa: Alpsancar, S. (2025). Algorithmische Kulturen des Pflanzensammelns? Das Beispiel der Computerisierung des Botanischen Gartens und Botanischen Museums Berlin. In U. Hashagen & R. Seising (Eds.), Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung (pp. 327–365). Springer. https://doi.org/10.1007/978-3-658-35560-9_14 bibtex: '@inbook{Alpsancar_2025, place={Wiesbaden}, series={Die blaue Stunde der Informatik}, title={Algorithmische Kulturen des Pflanzensammelns? Das Beispiel der Computerisierung des Botanischen Gartens und Botanischen Museums Berlin}, DOI={10.1007/978-3-658-35560-9_14}, booktitle={Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung}, publisher={Springer}, author={Alpsancar, Suzana}, editor={Hashagen, Ulf and Seising, Rudolf}, year={2025}, pages={327–365}, collection={Die blaue Stunde der Informatik} }' chicago: 'Alpsancar, Suzana. “Algorithmische Kulturen des Pflanzensammelns? Das Beispiel der Computerisierung des Botanischen Gartens und Botanischen Museums Berlin.” In Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung, edited by Ulf Hashagen and Rudolf Seising, 327–365. Die blaue Stunde der Informatik. Wiesbaden: Springer, 2025. https://doi.org/10.1007/978-3-658-35560-9_14.' ieee: 'S. Alpsancar, “Algorithmische Kulturen des Pflanzensammelns? Das Beispiel der Computerisierung des Botanischen Gartens und Botanischen Museums Berlin,” in Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung, U. Hashagen and R. Seising, Eds. Wiesbaden: Springer, 2025, pp. 327–365.' mla: Alpsancar, Suzana. “Algorithmische Kulturen des Pflanzensammelns? Das Beispiel der Computerisierung des Botanischen Gartens und Botanischen Museums Berlin.” Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung, edited by Ulf Hashagen and Rudolf Seising, Springer, 2025, pp. 327–365, doi:10.1007/978-3-658-35560-9_14. short: 'S. Alpsancar, in: U. Hashagen, R. Seising (Eds.), Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung, Springer, Wiesbaden, 2025, pp. 327–365.' date_created: 2025-10-05T15:29:31Z date_updated: 2025-11-18T09:31:23Z department: - _id: '26' - _id: '756' doi: 10.1007/978-3-658-35560-9_14 editor: - first_name: Ulf full_name: Hashagen, Ulf last_name: Hashagen - first_name: Rudolf full_name: Seising, Rudolf last_name: Seising language: - iso: ger page: 327–365 place: Wiesbaden publication: Algorithmische Wissenskulturen. Der Einfluss des Computers auf die Wissenschaftsentwicklung publication_identifier: isbn: - '9783658355593' - '9783658355609' issn: - 2730-7425 - 2730-7433 publication_status: published publisher: Springer series_title: Die blaue Stunde der Informatik status: public title: Algorithmische Kulturen des Pflanzensammelns? Das Beispiel der Computerisierung des Botanischen Gartens und Botanischen Museums Berlin type: book_chapter user_id: '93637' year: '2025' ...