On the conundrum of deriving exact solutions from approximate master equations

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dc.creatorDoll, Roland
dc.creatorZueco, David
dc.creatorWubs, Martijn
dc.creatorKohler, Sigmund
dc.creatorHanggi, Peter
dc.date2007-07-26
dc.date2007-09-05
dc.date.accessioned2026-07-07T09:38:07Z
dc.date.available2026-07-07T09:38:07Z
dc.descriptionWe derive the exact time-evolution for a general quantum system under the influence of pure phase-noise and demonstrate that for a Gaussian initial state of the bath, the exact result can be obtained also within a perturbative time-local master equation approach already in second order of the system-bath coupling strength. We reveal that this equivalence holds if the initial state of the bath can be mapped to a Gaussian phase-space distribution function. Moreover, we discuss the relation to the standard Bloch-Redfield approach.
dc.description7 pages; revised version; to appear in Chem. Phys
dc.identifierhttps://arxiv.org/abs/0707.3938
dc.identifierhttp://arxiv.org/abs/0707.3938
dc.identifierChem. Phys. 347, 243-249 (2008)
dc.identifierdoi:10.1016/j.chemphys.2007.09.003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160693
dc.subjectQuantum Physics
dc.subjectStatistical Mechanics
dc.titleOn the conundrum of deriving exact solutions from approximate master equations
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