Coherence lifetimes of excitations in an atomic condensate due to the thin spectrum

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dc.creatorBirol, T.
dc.creatorDereli, T.
dc.creatorMüstecaplıoğlu, Ö. E.
dc.creatorYou, L.
dc.date2007-09-27
dc.date.accessioned2026-07-07T08:36:46Z
dc.date.available2026-07-07T08:36:46Z
dc.descriptionWe study the quantum coherence properties of a finite sized atomic condensate using a toy-model and the thin spectrum model formalism. The decoherence time for a condensate in the ground state, nominally taken as a variational symmetry breaking state, is investigated for both zero and finite temperatures. We also consider the lifetimes for Bogoliubov quasi-particle excitations, and contrast them to the observability window determined by the ground state coherence time. The lifetimes are shown to exhibit a general characteristic dependence on the temperature, determined by the thin spectrum accompanying the spontaneous symmetry breaking ground state.
dc.identifierhttps://arxiv.org/abs/0709.4268
dc.identifierhttp://arxiv.org/abs/0709.4268
dc.identifierPhys. Rev. A 76, 043616 (2007)
dc.identifierdoi:10.1103/PhysRevA.76.043616
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140177
dc.subjectQuantum Physics
dc.subjectSoft Condensed Matter
dc.titleCoherence lifetimes of excitations in an atomic condensate due to the thin spectrum
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