Local effective dynamics of quantum systems: A generalized approach to work and heat

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dc.creatorWeimer, Hendrik
dc.creatorHenrich, Markus J.
dc.creatorRempp, Florian
dc.creatorSchröder, Heiko
dc.creatorMahler, Günter
dc.date2007-08-17
dc.date2008-08-04
dc.date.accessioned2026-07-07T09:54:07Z
dc.date.available2026-07-07T09:54:07Z
dc.descriptionBy computing the local energy expectation values with respect to some local measurement basis we show that for any quantum system there are two fundamentally different contributions: changes in energy that do not alter the local von Neumann entropy and changes that do. We identify the former as work and the latter as heat. Since our derivation makes no assumptions on the system Hamiltonian or its state, the result is valid even for states arbitrarily far from equilibrium. Examples are discussed ranging from the classical limit to purely quantum mechanical scenarios, i.e. where the Hamiltonian and the density operator do not commute.
dc.description5 pages, 1 figure, published version
dc.identifierhttps://arxiv.org/abs/0708.2354
dc.identifierhttp://arxiv.org/abs/0708.2354
dc.identifierEurophys. Lett. 83, 30008 (2008)
dc.identifierdoi:10.1209/0295-5075/83/30008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166197
dc.subjectQuantum Physics
dc.subjectStatistical Mechanics
dc.titleLocal effective dynamics of quantum systems: A generalized approach to work and heat
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