Vacuum as a less hostile environment to entanglement
Quantum Physics
2009-11-13 v3
Abstract
We derive sufficient conditions for infinite-dimensional systems whose entanglement is not completely lost in a finite time during its decoherence by a passive interaction with local vacuum environments. The sufficient conditions allow us to clarify a class of bipartite entangled states which preserve their entanglement or, in other words, are tolerant against decoherence in a vacuum. We also discuss such a class for entangled qubits.
Cite
@article{arxiv.0704.2035,
title = {Vacuum as a less hostile environment to entanglement},
author = {Petr Marek and Jinhyoung Lee and M. S. Kim},
journal= {arXiv preprint arXiv:0704.2035},
year = {2009}
}
Comments
Replaced by the published version