Uncertainty Relation at Finite Temperature

Details Uncertainty Relation at Finite Temperature Uncertainty Relation at Finite Temperature

1993-03-26

arxiv.org/abs/gr-qc/9303031v1

Mod. Phys. Lett. A8 (1993) 3575-3584

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 1 figure (not included), umdpp 93-161, plain tex

Scientific paper

We use the quantum Brownian model to derive the uncertainty relation for a quantum open system. We examine how the fluctuations of a quantum system evolve after it is brought in contact with a heat bath at finite temperature. We study the decoherence and relaxation processes and use this example to examine 1) the relation between quantum and thermal fluctuations; and 2) the conditions when the two basic postulates of quantum statistical mechanics become valid.

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