Transport in anisotropic model systems analyzed by a correlated projection superoperator technique

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dc.creatorWeimer, Hendrik
dc.creatorMichel, Mathias
dc.creatorGemmer, Jochen
dc.creatorMahler, Günter
dc.date2008-01-17
dc.date.accessioned2026-07-07T08:55:00Z
dc.date.available2026-07-07T08:55:00Z
dc.descriptionBy using a correlated projection operator, the time-convolutionless (TCL) method to derive a quantum master equation can be utilized to investigate the transport behavior of quantum systems as well. Here, we analyze a three-dimensional anisotropic quantum model system according to this technique. The system consists of Heisenberg coupled two-level systems in one direction and weak random interactions in all other ones. Depending on the partition chosen, we obtain ballistic behavior along the chains and normal transport in the perpendicular direction. These results are perfectly confirmed by the numerical solution of the full time-dependent Schrödinger equation.
dc.description8 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0801.2669
dc.identifierhttp://arxiv.org/abs/0801.2669
dc.identifierPhys. Rev. E 77, 011118 (2008)
dc.identifierdoi:10.1103/PhysRevE.77.011118
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/146144
dc.subjectQuantum Physics
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStatistical Mechanics
dc.titleTransport in anisotropic model systems analyzed by a correlated projection superoperator technique
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