dorsal/arxiv
View SchemaNon Thermal Equilibrium States of Closed Bipartite Systems
| Authors | Harry Schmidt, Guenter Mahler |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0703135 |
| URL | https://arxiv.org/abs/quant-ph/0703135 |
| DOI | 10.1103/PhysRevE.75.061111 |
Abstract
We investigate a two-level system in resonant contact with a larger environment. The environment typically is in a canonical state with a given temperature initially. Depending on the precise spectral structure of the environment and the type of coupling between both systems, the smaller part may relax to a canonical state with the same temperature as the environment (i.e. thermal relaxation) or to some other quasi equilibrium state (non thermal relaxation). The type of the (quasi) equilibrium state can be related to the distribution of certain properties of the energy eigenvectors of the total system. We examine these distributions for several abstract and concrete (spin environment) Hamiltonian systems, the significant aspect of these distributions can be related to the relative strength of local and interaction parts of the Hamiltonian.
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"abstract": "We investigate a two-level system in resonant contact with a larger\nenvironment. The environment typically is in a canonical state with a given\ntemperature initially. Depending on the precise spectral structure of the\nenvironment and the type of coupling between both systems, the smaller part may\nrelax to a canonical state with the same temperature as the environment (i.e.\nthermal relaxation) or to some other quasi equilibrium state (non thermal\nrelaxation). The type of the (quasi) equilibrium state can be related to the\ndistribution of certain properties of the energy eigenvectors of the total\nsystem. We examine these distributions for several abstract and concrete (spin\nenvironment) Hamiltonian systems, the significant aspect of these distributions\ncan be related to the relative strength of local and interaction parts of the\nHamiltonian.",
"arxiv_id": "quant-ph/0703135",
"authors": [
"Harry Schmidt",
"Guenter Mahler"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevE.75.061111",
"title": "Non Thermal Equilibrium States of Closed Bipartite Systems",
"url": "https://arxiv.org/abs/quant-ph/0703135"
},
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