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Quantum Simulation Open Quantum Systems Decoherence

Is Einstein's relation D = kTU always true?

arXiv

Authors: Roumen Tsekov

Year

2010

Paper ID

8982

Status

Preprint

Abstract Read

~2 min

Abstract Words

Citations

N/A

Abstract

The validity of Einstein's fluctuation-dissipation relation is discussed in respect to the type of relaxation in an isothermal system. The first model, presuming isothermic fluctuations, leads to the Einstein formula. The second model supposes adiabatic fluctuations and yields another relation between the diffusion coefficient and mobility of a Brownian particle. A new approach to relaxations in quantum systems is also proposed that demonstrates applicability only of the adiabatic model for description of the quantum Brownian dynamics.

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The validity of Einstein's fluctuation-dissipation relation is discussed in respect to the type of relaxation in an isothermal system.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1004.1717 [2] arXiv https://arxiv.org/abs/1004.1717 [3] Publisher https://arxiv.org/abs/1004.1717

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