Statistical-mechanical description of quantum entanglement
Quantum Physics
2008-08-27 v3
Abstract
We present a description of finite dimensional quantum entanglement, based on a study of the space of all convex decompositions of a given density matrix. On this space we construct a system of real polynomial equations describing separable states. We further study this system using statistical mechanical methods. Finally, we apply our techniques to Werner states of two qubits and obtain a sufficient criterion for separability.
Cite
@article{arxiv.0704.3357,
title = {Statistical-mechanical description of quantum entanglement},
author = {J. K. Korbicz and F. Hulpke and A. Osterloh and M. Lewenstein},
journal= {arXiv preprint arXiv:0704.3357},
year = {2008}
}