Role of many-body entanglement in decoherence processes
Quantum Physics
2009-11-07 v1
Abstract
A pure state decoheres into a mixed state as it entangles with an environment. When an entangled two-mode system is embedded in a thermal environment, however, each mode may not be entangled with its environment by their simple linear interaction. We consider an exactly solvable model to study the dynamics of a total system, which is composed of an entangled two-mode system and a thermal environment, and also an array of infinite beam splitters. It is shown that many-body entanglement of the system and the environment plays a crucial role in the process of disentangling the system.
Keywords
Cite
@article{arxiv.quant-ph/0210125,
title = {Role of many-body entanglement in decoherence processes},
author = {Helen McAneney and Jinhyoung Lee and M. S. Kim},
journal= {arXiv preprint arXiv:quant-ph/0210125},
year = {2009}
}
Comments
4 pages, 1 figure