Dissipation induced coherence and stochastic resonance of an open two-mode Bose-Einstein condensate

Simple item page
dc.creatorWitthaut, D.
dc.creatorTrimborn, F.
dc.creatorWimberger, S.
dc.date2009-02-03
dc.date.accessioned2026-07-07T12:55:56Z
dc.date.available2026-07-07T12:55:56Z
dc.descriptionWe discuss the dynamics of a Bose-Einstein condensate in a double-well trap subject to phase noise and particle loss. The phase coherence of a weakly-interacting condensate, experimentally measured via the contrast in an interference experiment, as well as the response to an external driving become maximal for a finite value of the dissipation rate matching the intrinsic time scales of the system. This can be understood as a stochastic resonance of the many-particle system. Even stronger effects are observed when dissipation acts in concurrence with strong inter-particle interactions, restoring the purity of the condensate almost completely and increasing the phase coherence significantly. Our theoretical results are backed by Monte Carlo simulations, which show a good qualitative agreement and provide a microscopic explanation for the observed stochastic resonance effect.
dc.description12 pages, 12 figures
dc.identifierhttps://arxiv.org/abs/0902.0611
dc.identifierhttp://arxiv.org/abs/0902.0611
dc.identifierPhys. Rev. A 79, 033621 (2009)
dc.identifierdoi:10.1103/PhysRevA.79.033621
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224423
dc.subjectQuantum Physics
dc.titleDissipation induced coherence and stochastic resonance of an open two-mode Bose-Einstein condensate
dc.typetext

Files

Collections

arXiv