arXiv:0909.0474 · Physical Review A

Redundancy of classical and quantum correlations during decoherence

Juan Pablo Paz, Augusto J. Roncaglia

Published Oct 22, 2009• 61 citations

Abstract

We analyze the time dependence of entanglement and total correlations between a system and fractions of its environment in the course of decoherence. For the quantum Brownian motion model, we show that the entanglement and total correlations have rather different dependence on the size of the environmental fraction. Redundancy manifests differently in both types of correlations and can be related with induced classicality. To study this, we present a measure of redundancy and compare it to the existing one.

DOI: 10.1103/physreva.80.042111

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