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arXiv · 0911.1321

Dissipative Quantum Systems in ThermoField Dynamics

J. L. Tomazelli·G. G. Gomes
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Abstract

We investigate a class of microscopic systems in interaction with a macroscopic system in thermal equilibrium, following the construction of Dalibard, Dupont-Roc and Cohen-Tannoudji (DDC). By considering self-adjoint operators as elements of Schwinger's Measurement Algebra (SMA), we construct statistical mean values of the relevant observables as matrix elements in a suitable operator basis, which correspond to the vacuum states of ThermoField Dynamics (TFD).

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J. L. Tomazelli, G. G. Gomes. 2009-11-06. Dissipative Quantum Systems in ThermoField Dynamics. https://arxiv.org/abs/0911.1321

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