Collapse and revival in inter-band oscillations of a two-band Bose-Hubbard model

• Verfasst von: Plötz, Patrick [VerfasserIn]
• Verfasst von: Madroñero, Javier [VerfasserIn]
• Verfasst von: Wimberger, Sandro [VerfasserIn]
• Titel: Collapse and revival in inter-band oscillations of a two-band Bose-Hubbard model
• Verf.angabe: Patrick Plötz, Javier Madroñero and Sandro Wimberger
• E-Jahr: 2010
• Jahr: 23 March 2010
• Umfang: 7 S.
• Fussnoten: Gesehen am 04.05.2023
• Titel Quelle: Enthalten in: Journal of physics / B
• Ort Quelle: Bristol : IOP Publ., 1988
• Jahr Quelle: 2010
• Band/Heft Quelle: 43(2010), 8 vom: März, Artikel-ID 081001, Seite 1-7
• ISSN Quelle: 1361-6455
• DOI: doi:10.1088/0953-4075/43/8/081001
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1844597024

Abstract

We study the effect of a many-body interaction on inter-band oscillations in a two-band Bose-Hubbard model with an external Stark force. Weak and strong inter-band oscillations are observed, where the latter arise from a resonant coupling of the bands. These oscillations collapse and revive due to a weak two-body interaction between the atoms. Effective models for oscillations in and out of resonance are introduced that provide predictions for the system's behaviour, particularly for the time scales for the collapse and revival of the resonant inter-band oscillations.