Mean-field dynamics of a non-Hermitian Bose-Hubbard dimer

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dc.creatorGraefe, E. M.
dc.creatorKorsch, H. J.
dc.creatorNiederle, A. E.
dc.date2008-07-11
dc.date2008-10-10
dc.date.accessioned2026-07-07T10:08:38Z
dc.date.available2026-07-07T10:08:38Z
dc.descriptionWe investigate an $N$-particle Bose-Hubbard dimer with an additional effective decay term in one of the sites. A mean-field approximation for this non-Hermitian many-particle system is derived, based on a coherent state approximation. The resulting nonlinear, non-Hermitian two-level dynamics, in particular the fixed point structures showing characteristic modifications of the self-trapping transition, are analyzed. The mean-field dynamics is found to be in reasonable agreement with the full many-particle evolution.
dc.description4 pages, 3 figures, published version
dc.identifierhttps://arxiv.org/abs/0807.1777
dc.identifierhttp://arxiv.org/abs/0807.1777
dc.identifierPhys. Rev. Lett. 101, 150408 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.150408
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/171064
dc.subjectQuantum Physics
dc.subjectOther Condensed Matter
dc.titleMean-field dynamics of a non-Hermitian Bose-Hubbard dimer
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