Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate
We theoretically study stimulated and spontaneous Hawking emission from an analog horizon for spin modes in a two-component Bose–Einstein condensate, both with and without a coherent coupling between the two components. We highlight the conceptual and practical advantages that these systems offer to...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2025-01-01
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| Series: | Comptes Rendus. Physique |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.226/ |
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| author | Berti, Anna Fernandes, Lennart Butera, Salvatore Recati, Alessio Wouters, Michiel Carusotto, Iacopo |
| author_facet | Berti, Anna Fernandes, Lennart Butera, Salvatore Recati, Alessio Wouters, Michiel Carusotto, Iacopo |
| author_sort | Berti, Anna |
| collection | DOAJ |
| description | We theoretically study stimulated and spontaneous Hawking emission from an analog horizon for spin modes in a two-component Bose–Einstein condensate, both with and without a coherent coupling between the two components. We highlight the conceptual and practical advantages that these systems offer to the experimental observation of the phenomenon, namely the possibility of working with massive elementary excitations and the experimental accessibility of the different quadratures of the spin excitations. In particular, we go beyond the relativistic regimes previously addressed in the literature, and identify various observables that show a signature of the Hawking process, as well as additional features associated with the massive nature of the modes, such as undulations. Semi-analytical calculations of the scattering properties of the horizon and of two-point correlation functions of the emitted radiation in an ideal stationary setup are supported by time-dependent numerical simulations based on Gross–Pitaevskii and Bogoliubov theory. |
| format | Article |
| id | doaj-art-c26dd687778a4a5a83b254b328a1c072 |
| institution | Kabale University |
| issn | 1878-1535 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Physique |
| spelling | doaj-art-c26dd687778a4a5a83b254b328a1c0722025-02-07T13:54:02ZengAcadémie des sciencesComptes Rendus. Physique1878-15352025-01-0113610.5802/crphys.22610.5802/crphys.226Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensateBerti, Anna0https://orcid.org/0000-0003-3073-9554Fernandes, Lennart1https://orcid.org/0000-0003-4994-6051Butera, Salvatore2https://orcid.org/0000-0002-5980-3938 Recati, Alessio3https://orcid.org/0000-0002-8682-2034Wouters, Michiel4https://orcid.org/0000-0003-1988-4718Carusotto, Iacopo5https://orcid.org/0000-0002-9838-0149Pitaevskii BEC Center, INO-CNR and Dipartimento di Fisica, University of Trento, ItalyCenter for Quantum Phenomena, Department of Physics, New York University, USA; Theory of Quantum and Complex Systems, University of Antwerp, BelgiumSchool of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UKPitaevskii BEC Center, INO-CNR and Dipartimento di Fisica, University of Trento, ItalyTheory of Quantum and Complex Systems, University of Antwerp, BelgiumPitaevskii BEC Center, INO-CNR and Dipartimento di Fisica, University of Trento, ItalyWe theoretically study stimulated and spontaneous Hawking emission from an analog horizon for spin modes in a two-component Bose–Einstein condensate, both with and without a coherent coupling between the two components. We highlight the conceptual and practical advantages that these systems offer to the experimental observation of the phenomenon, namely the possibility of working with massive elementary excitations and the experimental accessibility of the different quadratures of the spin excitations. In particular, we go beyond the relativistic regimes previously addressed in the literature, and identify various observables that show a signature of the Hawking process, as well as additional features associated with the massive nature of the modes, such as undulations. Semi-analytical calculations of the scattering properties of the horizon and of two-point correlation functions of the emitted radiation in an ideal stationary setup are supported by time-dependent numerical simulations based on Gross–Pitaevskii and Bogoliubov theory.https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.226/Hawking radiationAnalog gravityTwo-component Bose–Einstein condensate |
| spellingShingle | Berti, Anna Fernandes, Lennart Butera, Salvatore Recati, Alessio Wouters, Michiel Carusotto, Iacopo Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate Comptes Rendus. Physique Hawking radiation Analog gravity Two-component Bose–Einstein condensate |
| title | Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate |
| title_full | Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate |
| title_fullStr | Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate |
| title_full_unstemmed | Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate |
| title_short | Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate |
| title_sort | analog hawking radiation from a spin sonic horizon in a two component bose einstein condensate |
| topic | Hawking radiation Analog gravity Two-component Bose–Einstein condensate |
| url | https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.226/ |
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