[{"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1038/s42005-024-01626-5"}],"publication_identifier":{"issn":["2399-3650"]},"oa":1,"intvolume":"         7","author":[{"full_name":"Elul, Yonatan","last_name":"Elul","first_name":"Yonatan"},{"first_name":"Eyal","last_name":"Rozenberg","full_name":"Rozenberg, Eyal"},{"last_name":"Boyarski","full_name":"Boyarski, Amit","first_name":"Amit"},{"full_name":"Yaniv, Yael","last_name":"Yaniv","first_name":"Yael"},{"first_name":"Assaf","last_name":"Schuster","full_name":"Schuster, Assaf"},{"orcid":"0000-0001-9699-8730","full_name":"Bronstein, Alexander","last_name":"Bronstein","id":"58f3726e-7cba-11ef-ad8b-e6e8cb3904e6","first_name":"Alexander"}],"scopus_import":"1","publication":"Communications Physics","abstract":[{"lang":"eng","text":"Non-linear dynamical systems describe numerous real-world phenomena, ranging from the weather, to financial markets and disease progression. Individual systems may share substantial common information, for example patients’ anatomy. Lately, deep-learning has emerged as a leading method for data-driven modeling of non-linear dynamical systems. Yet, despite recent breakthroughs, prior works largely ignored the existence of shared information between different systems. However, such cases are quite common, for example, in medicine: we may wish to have a patient-specific model for some disease, but the data collected from a single patient is usually too small to train a deep-learning model. Hence, we must properly utilize data gathered from other patients. Here, we explicitly consider such cases by jointly modeling multiple systems. We show that the current single-system models consistently fail when trying to learn simultaneously from multiple systems. We suggest a framework for jointly approximating the Koopman operators of multiple systems, while intrinsically exploiting common information. We demonstrate how we can adapt to a new system using order-of-magnitude less new data and show the superiority of our model over competing methods, in terms of both forecasting ability and statistical fidelity, across chaotic, cardiac, and climate systems."}],"article_number":"141","quality_controlled":"1","volume":7,"language":[{"iso":"eng"}],"date_created":"2024-10-08T12:45:35Z","publication_status":"published","publisher":"Springer Nature","day":"01","type":"journal_article","status":"public","extern":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version","year":"2024","date_updated":"2024-10-09T10:12:11Z","date_published":"2024-05-01T00:00:00Z","citation":{"ieee":"Y. Elul, E. Rozenberg, A. Boyarski, Y. Yaniv, A. Schuster, and A. M. Bronstein, “Data-driven modeling of interrelated dynamical systems,” <i>Communications Physics</i>, vol. 7. Springer Nature, 2024.","short":"Y. Elul, E. Rozenberg, A. Boyarski, Y. Yaniv, A. Schuster, A.M. Bronstein, Communications Physics 7 (2024).","mla":"Elul, Yonatan, et al. “Data-Driven Modeling of Interrelated Dynamical Systems.” <i>Communications Physics</i>, vol. 7, 141, Springer Nature, 2024, doi:<a href=\"https://doi.org/10.1038/s42005-024-01626-5\">10.1038/s42005-024-01626-5</a>.","ista":"Elul Y, Rozenberg E, Boyarski A, Yaniv Y, Schuster A, Bronstein AM. 2024. Data-driven modeling of interrelated dynamical systems. Communications Physics. 7, 141.","chicago":"Elul, Yonatan, Eyal Rozenberg, Amit Boyarski, Yael Yaniv, Assaf Schuster, and Alex M. Bronstein. “Data-Driven Modeling of Interrelated Dynamical Systems.” <i>Communications Physics</i>. Springer Nature, 2024. <a href=\"https://doi.org/10.1038/s42005-024-01626-5\">https://doi.org/10.1038/s42005-024-01626-5</a>.","apa":"Elul, Y., Rozenberg, E., Boyarski, A., Yaniv, Y., Schuster, A., &#38; Bronstein, A. M. (2024). Data-driven modeling of interrelated dynamical systems. <i>Communications Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s42005-024-01626-5\">https://doi.org/10.1038/s42005-024-01626-5</a>","ama":"Elul Y, Rozenberg E, Boyarski A, Yaniv Y, Schuster A, Bronstein AM. Data-driven modeling of interrelated dynamical systems. <i>Communications Physics</i>. 2024;7. doi:<a href=\"https://doi.org/10.1038/s42005-024-01626-5\">10.1038/s42005-024-01626-5</a>"},"article_processing_charge":"Yes","title":"Data-driven modeling of interrelated dynamical systems","month":"05","_id":"18204","doi":"10.1038/s42005-024-01626-5","article_type":"original"},{"quality_controlled":"1","volume":6,"abstract":[{"text":"The model of a ring threaded by the Aharonov-Bohm flux underlies our understanding of a coupling between gauge potentials and matter. The typical formulation of the model is based upon a single particle picture, and should be extended when interactions with other particles become relevant. Here, we illustrate such an extension for a particle in an Aharonov-Bohm ring subject to interactions with a weakly interacting Bose gas. We show that the ground state of the system can be described using the Bose-polaron concept—a particle dressed by interactions with a bosonic environment. We connect the energy spectrum to the effective mass of the polaron, and demonstrate how to change currents in the system by tuning boson-particle interactions. Our results suggest the Aharonov-Bohm ring as a platform for studying coherence and few- to many-body crossover of quasi-particles that arise from an impurity immersed in a medium.","lang":"eng"}],"article_number":"224","publication_status":"published","language":[{"iso":"eng"}],"corr_author":"1","external_id":{"arxiv":["2301.10488"],"isi":["001052577500002"]},"department":[{"_id":"MiLe"}],"date_created":"2023-08-28T12:36:49Z","publication_identifier":{"issn":["2399-3650"]},"oa":1,"acknowledgement":"Open Access funding enabled and organized by Projekt DEAL.\r\nWe would like to thank Jonas Jager for sharing his data with us in the early stages of this project. We thank Joachim Brand and Ray Yang for sharing with us data from Yang et al.46. This work has received funding from the DFG Project no. 413495248 [VO 2437/1-1] (F.B., H.-W.H., A.G.V.). We acknowledge support from the Deutsche Forschungsgemeinschaft (DFG - German Research Foundation) and the Open Access Publishing Fund of the Technical University of Darmstadt.","file":[{"file_size":855960,"date_created":"2023-09-05T08:45:49Z","file_id":"14268","creator":"dernst","file_name":"2023_CommPhysics_Brauneis.pdf","date_updated":"2023-09-05T08:45:49Z","content_type":"application/pdf","checksum":"6edfc59b0ee7dc406d0968b05236e83d","success":1,"relation":"main_file","access_level":"open_access"}],"isi":1,"intvolume":"         6","keyword":["General Physics and Astronomy"],"author":[{"full_name":"Brauneis, Fabian","last_name":"Brauneis","first_name":"Fabian"},{"orcid":"0000-0001-9666-3543","last_name":"Ghazaryan","full_name":"Ghazaryan, Areg","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","first_name":"Areg"},{"first_name":"Hans-Werner","last_name":"Hammer","full_name":"Hammer, Hans-Werner"},{"first_name":"Artem","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","last_name":"Volosniev","full_name":"Volosniev, Artem","orcid":"0000-0003-0393-5525"}],"scopus_import":"1","publication":"Communications Physics","file_date_updated":"2023-09-05T08:45:49Z","title":"Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux","month":"08","_id":"14246","citation":{"ieee":"F. Brauneis, A. Ghazaryan, H.-W. Hammer, and A. Volosniev, “Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux,” <i>Communications Physics</i>, vol. 6. Springer Nature, 2023.","short":"F. Brauneis, A. Ghazaryan, H.-W. Hammer, A. Volosniev, Communications Physics 6 (2023).","mla":"Brauneis, Fabian, et al. “Emergence of a Bose Polaron in a Small Ring Threaded by the Aharonov-Bohm Flux.” <i>Communications Physics</i>, vol. 6, 224, Springer Nature, 2023, doi:<a href=\"https://doi.org/10.1038/s42005-023-01281-2\">10.1038/s42005-023-01281-2</a>.","ista":"Brauneis F, Ghazaryan A, Hammer H-W, Volosniev A. 2023. Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux. Communications Physics. 6, 224.","chicago":"Brauneis, Fabian, Areg Ghazaryan, Hans-Werner Hammer, and Artem Volosniev. “Emergence of a Bose Polaron in a Small Ring Threaded by the Aharonov-Bohm Flux.” <i>Communications Physics</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s42005-023-01281-2\">https://doi.org/10.1038/s42005-023-01281-2</a>.","apa":"Brauneis, F., Ghazaryan, A., Hammer, H.-W., &#38; Volosniev, A. (2023). Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux. <i>Communications Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s42005-023-01281-2\">https://doi.org/10.1038/s42005-023-01281-2</a>","ama":"Brauneis F, Ghazaryan A, Hammer H-W, Volosniev A. Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux. <i>Communications Physics</i>. 2023;6. doi:<a href=\"https://doi.org/10.1038/s42005-023-01281-2\">10.1038/s42005-023-01281-2</a>"},"article_processing_charge":"Yes (via OA deal)","arxiv":1,"ddc":["530"],"doi":"10.1038/s42005-023-01281-2","article_type":"original","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"status":"public","publisher":"Springer Nature","day":"22","type":"journal_article","oa_version":"Published Version","year":"2023","date_updated":"2024-10-09T21:06:47Z","date_published":"2023-08-22T00:00:00Z","has_accepted_license":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"publication_identifier":{"issn":["2399-3650"]},"oa":1,"acknowledgement":"This work has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 754411 (A.G.V. and A.G.). M.L. acknowledges support by the Austrian Science Fund (FWF), under project No. P29902-N27, and by the European Research Council (ERC) Starting\r\nGrant No. 801770 (ANGULON).","file":[{"date_created":"2020-10-14T15:16:28Z","file_id":"8662","creator":"dernst","file_name":"2020_CommPhysics_Ghazaryan.pdf","file_size":1462934,"checksum":"60cd35b99f0780acffc7b6060e49ec8b","content_type":"application/pdf","date_updated":"2020-10-14T15:16:28Z","success":1,"relation":"main_file","access_level":"open_access"}],"ec_funded":1,"intvolume":"         3","isi":1,"scopus_import":"1","author":[{"orcid":"0000-0001-9666-3543","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","first_name":"Areg","last_name":"Ghazaryan","full_name":"Ghazaryan, Areg"},{"orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail"},{"last_name":"Volosniev","full_name":"Volosniev, Artem","first_name":"Artem","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0393-5525"}],"file_date_updated":"2020-10-14T15:16:28Z","publication":"Communications Physics","quality_controlled":"1","volume":3,"abstract":[{"text":"Nature creates electrons with two values of the spin projection quantum number. In certain applications, it is important to filter electrons with one spin projection from the rest. Such filtering is not trivial, since spin-dependent interactions are often weak, and cannot lead to any substantial effect. Here we propose an efficient spin filter based upon scattering from a two-dimensional crystal, which is made of aligned point magnets. The polarization of the outgoing electron flux is controlled by the crystal, and reaches maximum at specific values of the parameters. In our scheme, polarization increase is accompanied by higher reflectivity of the crystal. High transmission is feasible in scattering from a quantum cavity made of two crystals. Our findings can be used for studies of low-energy spin-dependent scattering from two-dimensional ordered structures made of magnetic atoms or aligned chiral molecules.","lang":"eng"}],"article_number":"178","publication_status":"published","corr_author":"1","language":[{"iso":"eng"}],"external_id":{"isi":["000581681000001"]},"department":[{"_id":"MiLe"}],"date_created":"2020-10-13T09:48:59Z","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"status":"public","type":"journal_article","publisher":"Springer Nature","day":"09","oa_version":"Published Version","year":"2020","date_updated":"2025-04-14T07:43:50Z","has_accepted_license":"1","project":[{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425"},{"name":"Quantum rotations in the presence of a many-body environment","call_identifier":"FWF","grant_number":"P29902","_id":"26031614-B435-11E9-9278-68D0E5697425"},{"call_identifier":"H2020","name":"Angulon: physics and applications of a new quasiparticle","_id":"2688CF98-B435-11E9-9278-68D0E5697425","grant_number":"801770"}],"date_published":"2020-10-09T00:00:00Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","title":"Filtering spins by scattering from a lattice of point magnets","month":"10","_id":"8652","citation":{"ista":"Ghazaryan A, Lemeshko M, Volosniev A. 2020. Filtering spins by scattering from a lattice of point magnets. Communications Physics. 3, 178.","chicago":"Ghazaryan, Areg, Mikhail Lemeshko, and Artem Volosniev. “Filtering Spins by Scattering from a Lattice of Point Magnets.” <i>Communications Physics</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1038/s42005-020-00445-8\">https://doi.org/10.1038/s42005-020-00445-8</a>.","apa":"Ghazaryan, A., Lemeshko, M., &#38; Volosniev, A. (2020). Filtering spins by scattering from a lattice of point magnets. <i>Communications Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s42005-020-00445-8\">https://doi.org/10.1038/s42005-020-00445-8</a>","ama":"Ghazaryan A, Lemeshko M, Volosniev A. Filtering spins by scattering from a lattice of point magnets. <i>Communications Physics</i>. 2020;3. doi:<a href=\"https://doi.org/10.1038/s42005-020-00445-8\">10.1038/s42005-020-00445-8</a>","ieee":"A. Ghazaryan, M. Lemeshko, and A. Volosniev, “Filtering spins by scattering from a lattice of point magnets,” <i>Communications Physics</i>, vol. 3. Springer Nature, 2020.","mla":"Ghazaryan, Areg, et al. “Filtering Spins by Scattering from a Lattice of Point Magnets.” <i>Communications Physics</i>, vol. 3, 178, Springer Nature, 2020, doi:<a href=\"https://doi.org/10.1038/s42005-020-00445-8\">10.1038/s42005-020-00445-8</a>.","short":"A. Ghazaryan, M. Lemeshko, A. Volosniev, Communications Physics 3 (2020)."},"article_processing_charge":"Yes","ddc":["530"],"doi":"10.1038/s42005-020-00445-8","article_type":"original"},{"abstract":[{"lang":"eng","text":"In developing technologies based on superconducting quantum circuits, the need to control and route heating is a significant challenge in the experimental realisation and operation of these devices. One of the more ubiquitous devices in the current quantum computing toolbox is the transmon-type superconducting quantum bit, embedded in a resonator-based architecture. In the study of heat transport in superconducting circuits, a versatile and sensitive thermometer is based on studying the tunnelling characteristics of superconducting probes weakly coupled to a normal-metal island. Here we show that by integrating superconducting quantum bit coupled to two superconducting resonators at different frequencies, each resonator terminated (and thermally populated) by such a mesoscopic thin film metal island, one can experimentally observe magnetic flux-tunable photonic heat rectification between 0 and 10%."}],"article_number":"40","quality_controlled":"1","volume":3,"language":[{"iso":"eng"}],"date_created":"2020-02-26T13:51:14Z","publication_status":"published","publication_identifier":{"issn":["2399-3650"]},"oa":1,"DOAJ_listed":"1","file":[{"access_level":"open_access","relation":"main_file","date_updated":"2020-07-14T12:48:00Z","checksum":"59255f51d9f113c40e3047e9ac83d367","content_type":"application/pdf","file_size":1590721,"creator":"dernst","file_name":"s42005-020-0307-5.pdf","date_created":"2020-03-03T10:41:13Z","file_id":"7559"},{"relation":"main_file","access_level":"open_access","checksum":"8325ae7b3c869d9aa6ed84823da4000a","content_type":"application/pdf","date_updated":"2020-07-14T12:48:00Z","file_id":"7560","date_created":"2020-03-03T10:41:13Z","creator":"dernst","file_name":"42005_2020_307_MOESM1_ESM.pdf","file_size":1007249}],"intvolume":"         3","file_date_updated":"2020-07-14T12:48:00Z","author":[{"first_name":"Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E","full_name":"Senior, Jorden L","last_name":"Senior","orcid":"0000-0002-0672-9295"},{"last_name":"Gubaydullin","full_name":"Gubaydullin, Azat","first_name":"Azat"},{"last_name":"Karimi","full_name":"Karimi, Bayan","first_name":"Bayan"},{"full_name":"Peltonen, Joonas T.","last_name":"Peltonen","first_name":"Joonas T."},{"first_name":"Joachim","last_name":"Ankerhold","full_name":"Ankerhold, Joachim"},{"first_name":"Jukka P.","last_name":"Pekola","full_name":"Pekola, Jukka P."}],"publication":"Communications Physics","citation":{"apa":"Senior, J. L., Gubaydullin, A., Karimi, B., Peltonen, J. T., Ankerhold, J., &#38; Pekola, J. P. (2020). Heat rectification via a superconducting artificial atom. <i>Communications Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s42005-020-0307-5\">https://doi.org/10.1038/s42005-020-0307-5</a>","ama":"Senior JL, Gubaydullin A, Karimi B, Peltonen JT, Ankerhold J, Pekola JP. Heat rectification via a superconducting artificial atom. <i>Communications Physics</i>. 2020;3(1). doi:<a href=\"https://doi.org/10.1038/s42005-020-0307-5\">10.1038/s42005-020-0307-5</a>","ista":"Senior JL, Gubaydullin A, Karimi B, Peltonen JT, Ankerhold J, Pekola JP. 2020. Heat rectification via a superconducting artificial atom. Communications Physics. 3(1), 40.","chicago":"Senior, Jorden L, Azat Gubaydullin, Bayan Karimi, Joonas T. Peltonen, Joachim Ankerhold, and Jukka P. Pekola. “Heat Rectification via a Superconducting Artificial Atom.” <i>Communications Physics</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1038/s42005-020-0307-5\">https://doi.org/10.1038/s42005-020-0307-5</a>.","mla":"Senior, Jorden L., et al. “Heat Rectification via a Superconducting Artificial Atom.” <i>Communications Physics</i>, vol. 3, no. 1, 40, Springer Nature, 2020, doi:<a href=\"https://doi.org/10.1038/s42005-020-0307-5\">10.1038/s42005-020-0307-5</a>.","short":"J.L. Senior, A. Gubaydullin, B. Karimi, J.T. Peltonen, J. Ankerhold, J.P. Pekola, Communications Physics 3 (2020).","ieee":"J. L. Senior, A. Gubaydullin, B. Karimi, J. T. Peltonen, J. Ankerhold, and J. P. Pekola, “Heat rectification via a superconducting artificial atom,” <i>Communications Physics</i>, vol. 3, no. 1. Springer Nature, 2020."},"article_processing_charge":"No","title":"Heat rectification via a superconducting artificial atom","month":"02","_id":"7530","doi":"10.1038/s42005-020-0307-5","OA_place":"publisher","OA_type":"gold","article_type":"original","ddc":["536"],"day":"25","publisher":"Springer Nature","type":"journal_article","issue":"1","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"status":"public","extern":"1","user_id":"0043cee0-e5fc-11ee-9736-f83bc23afbf0","oa_version":"Published Version","year":"2020","date_updated":"2024-10-15T12:36:24Z","date_published":"2020-02-25T00:00:00Z","has_accepted_license":"1"}]