Non-Markovian quantum dynamics: Correlated projection superoperators and Hilbert space averaging
DC Element | Wert | Sprache |
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dc.contributor.author | Breuer, HP | |
dc.contributor.author | Gemmer, J | |
dc.contributor.author | Michel, M | |
dc.date.accessioned | 2021-12-23T16:15:27Z | - |
dc.date.available | 2021-12-23T16:15:27Z | - |
dc.date.issued | 2006 | |
dc.identifier.issn | 15393755 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/11439 | - |
dc.description.abstract | The time-convolutionless (TCL) projection operator technique allows a systematic analysis of the non-Markovian quantum dynamics of open systems. We present a class of projection superoperators that project the states of the total system onto certain correlated system-environment states. It is shown that the application of the TCL technique to this class of correlated superoperators enables the nonperturbative treatment of the dynamics of system-environment models for which the standard approach fails in any finite order of the coupling strength. We demonstrate further that the correlated superoperators correspond to the idea of a best guess of conditional quantum expectations, which is determined by a suitable Hilbert-space average. The general approach is illustrated by means of the model of a spin that interacts through randomly distributed couplings with a finite reservoir consisting of two energy bands. Extensive numerical simulations of the full Schrodinger equation of the model reveal the power and efficiency of the method. | |
dc.language.iso | en | |
dc.publisher | AMER PHYSICAL SOC | |
dc.relation.ispartof | PHYSICAL REVIEW E | |
dc.subject | CUMULANT EXPANSIONS | |
dc.subject | DECAY | |
dc.subject | OPERATOR-FORMALISM | |
dc.subject | Physics | |
dc.subject | Physics, Fluids & Plasmas | |
dc.subject | Physics, Mathematical | |
dc.subject | RELAXATION | |
dc.subject | SYSTEMS | |
dc.title | Non-Markovian quantum dynamics: Correlated projection superoperators and Hilbert space averaging | |
dc.type | journal article | |
dc.identifier.doi | 10.1103/PhysRevE.73.016139 | |
dc.identifier.isi | ISI:000235008800048 | |
dc.description.volume | 73 | |
dc.description.issue | 1, 2 | |
dc.contributor.orcid | 0000-0002-4030-6720 | |
dc.contributor.researcherid | K-4694-2016 | |
dc.identifier.eissn | 15502376 | |
dc.publisher.place | ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA | |
dcterms.isPartOf.abbreviation | Phys. Rev. E | |
dcterms.oaStatus | Green Submitted | |
crisitem.author.netid | GeJo743 | - |
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