Entanglement production and decoherence-free subspace of two single-mode cavities embedded in a common environment
Abstract
A system consisting of two identical single-mode cavities coupled to a common environment is investigated within the framework of algebraic dynamics. Based on the left and right representations of the Heisenberg-Weyl algebra, the algebraic structure of the master equation is explored and exact analytical solutions of this system are obtained. It is shown that for such a system, the environment can produce entanglement in contrast to its commonly believed role of destroying entanglement. In addition, the collective zero-mode eigen solutions of the system are found to be free of decoherence against the dissipation of the environment. These decoherence-free states may be useful in quantum information and quantum computation.
Keywords
Cite
@article{arxiv.quant-ph/0505087,
title = {Entanglement production and decoherence-free subspace of two single-mode cavities embedded in a common environment},
author = {Jun-Hong An and Shun-Jin Wang and Hong-Gang Luo},
journal= {arXiv preprint arXiv:quant-ph/0505087},
year = {2009}
}
Comments
10 pages, 7 figures, Revtex4