Quantum correlation and classical correlation dynamics in the spin-boson model

Details Quantum correlation and classical correlation dynamics in the spin-boson model Quantum correlation and classical correlation dynamics in the spin-boson model

2010-07-05

arxiv.org/abs/1007.0669v1

Phys. Rev. A 81, 064103 (2010)

Physics

Quantum Physics

10 pages, 5 figures

Scientific paper

We study the quantum correlation and classical correlation dynamics in a spin-boson model. For two different forms of spectral density, we obtain analytical results and show that the evolutions of both correlations depend closely on the form of the initial state. At the end of evolution, all correlations initially stored in the spin system transfer to reservoirs. It is found that for a large family of initial states, quantum correlation remains equal to the classical correlation during the course of evolution. In addition, there is no increase in the correlations during the course of evolution.

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