Resonant analogue configurations in atomic condensates
As a contribution to a memorial volume, we provide a comprehensive discussion of resonant configurations in analogue gravity, focusing on its implementation in atomic condensates and combining review features with original insights and calculations. In particular, we jointly analyze the analogues of...
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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.212/ |
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| author | Muñoz de Nova, Juan Ramón Fernández Palacios, Pablo Alcázar Guerrero, Pedro Zapata, Ivar Sols, Fernando |
| author_facet | Muñoz de Nova, Juan Ramón Fernández Palacios, Pablo Alcázar Guerrero, Pedro Zapata, Ivar Sols, Fernando |
| author_sort | Muñoz de Nova, Juan Ramón |
| collection | DOAJ |
| description | As a contribution to a memorial volume, we provide a comprehensive discussion of resonant configurations in analogue gravity, focusing on its implementation in atomic condensates and combining review features with original insights and calculations. In particular, we jointly analyze the analogues of the Andreev and Hawking effects using a microscopic description based on the Bogoliubov approximation. We perform a detailed study of the thermality of the Andreev and Hawking spectra for canonical black-hole solutions, finding that both can be described by a gray-body distribution to a very good approximation. We contemplate several resonant scenarios whose efficiency to enhance anomalous scattering processes is compared to that of non-resonant setups. The presence of quantum signatures in analogue configurations, such as the violation of Cauchy–Schwarz inequalities or entanglement, is analyzed, observing that resonant configurations highly increase the entanglement signal, especially for the Andreev effect. We also discuss how these results have served as inspiration for the rapidly expanding field of quantum information in high-energy colliders. Finally, we study the physics of black-hole lasers as further examples of resonant analogue structures, distinguishing three stages in its time evolution. For short times, we compute the linear and non-linear spectrum for different models. For intermediate times, we generalize the current analysis of the BHL–BCL crossover. For long times, we discuss the emerging concept of spontaneous Floquet state and its potential implications. |
| format | Article |
| id | doaj-art-2abfbca759734ffcae12792b10c358a7 |
| 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-2abfbca759734ffcae12792b10c358a72025-02-07T13:54:01ZengAcadémie des sciencesComptes Rendus. Physique1878-15352025-01-0116310.5802/crphys.21210.5802/crphys.212Resonant analogue configurations in atomic condensatesMuñoz de Nova, Juan Ramón0https://orcid.org/0000-0001-6229-9640Fernández Palacios, Pablo1https://orcid.org/0000-0002-0622-6794Alcázar Guerrero, Pedro 2Zapata, Ivar3Sols, Fernando4https://orcid.org/0000-0002-0947-286XDepartamento de Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, SpainInstituto de Energía Solar, Universidad Politécnica de Madrid, 28040 Madrid, SpainCatalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; Department of Physics, Campus UAB, Bellaterra, 08193 Barcelona, SpainmrHouston Tech Solutions, 28002 Madrid, SpainDepartamento de Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, SpainAs a contribution to a memorial volume, we provide a comprehensive discussion of resonant configurations in analogue gravity, focusing on its implementation in atomic condensates and combining review features with original insights and calculations. In particular, we jointly analyze the analogues of the Andreev and Hawking effects using a microscopic description based on the Bogoliubov approximation. We perform a detailed study of the thermality of the Andreev and Hawking spectra for canonical black-hole solutions, finding that both can be described by a gray-body distribution to a very good approximation. We contemplate several resonant scenarios whose efficiency to enhance anomalous scattering processes is compared to that of non-resonant setups. The presence of quantum signatures in analogue configurations, such as the violation of Cauchy–Schwarz inequalities or entanglement, is analyzed, observing that resonant configurations highly increase the entanglement signal, especially for the Andreev effect. We also discuss how these results have served as inspiration for the rapidly expanding field of quantum information in high-energy colliders. Finally, we study the physics of black-hole lasers as further examples of resonant analogue structures, distinguishing three stages in its time evolution. For short times, we compute the linear and non-linear spectrum for different models. For intermediate times, we generalize the current analysis of the BHL–BCL crossover. For long times, we discuss the emerging concept of spontaneous Floquet state and its potential implications.https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.212/Analog gravityQuantum gasesAndreev processesQuantum informationHigh-energy collidersTime-crystals |
| spellingShingle | Muñoz de Nova, Juan Ramón Fernández Palacios, Pablo Alcázar Guerrero, Pedro Zapata, Ivar Sols, Fernando Resonant analogue configurations in atomic condensates Comptes Rendus. Physique Analog gravity Quantum gases Andreev processes Quantum information High-energy colliders Time-crystals |
| title | Resonant analogue configurations in atomic condensates |
| title_full | Resonant analogue configurations in atomic condensates |
| title_fullStr | Resonant analogue configurations in atomic condensates |
| title_full_unstemmed | Resonant analogue configurations in atomic condensates |
| title_short | Resonant analogue configurations in atomic condensates |
| title_sort | resonant analogue configurations in atomic condensates |
| topic | Analog gravity Quantum gases Andreev processes Quantum information High-energy colliders Time-crystals |
| url | https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.212/ |
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