Quench dynamics of a weakly interacting disordered Bose gas in momentum space
Abstract: We study theoretically the out-of-equilibrium dynamics in momentum space of a weakly interacting disordered Bose gas launched with a finite velocity. In the absence of interactions, coherent multiple scattering gives rise to a background of diffusive particles, on top of which a coherent backscattering interference emerges. We revisit this scenario in the presence of interactions, using a diagrammatic quantum transport theory. We find that the dynamics is governed by coupled kinetic equations describing the thermalization of the diffusive and coherent components of the gas. This phenomenon leads to a destruction of coherent backscattering, well described by an exponential relaxation whose rate is controlled by the particle collision time. These predictions are confirmed by numerical simulations
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Physical review research. - 2, 3 (2020) , 033349, ISSN: 2643-1564
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2023
- Urheber
- Beteiligte Personen und Organisationen
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Quantum Optics and Statistics
- DOI
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10.1103/physrevresearch.2.033349
- URN
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urn:nbn:de:bsz:25-freidok-2334518
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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25.03.2025, 13:54 MEZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Scoquart, Thibault
- Wellens, Thomas
- Delande, Dominique
- Cherroret, Nicolas
- Quantum Optics and Statistics
- Universität
Entstanden
- 2023
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