Two qubits entanglement dynamics in a symmetry-broken environment
Quantum Physics
2009-11-10 v1
Abstract
We study the temporal evolution of entanglement pertaining to two qubits interacting with a thermal bath. In particular we consider the simplest nontrivial spin bath models where symmetry breaking occurs and treat them by mean field approximation. We analytically find decoherence free entangled states as well as entangled states with an exponential decay of the quantum correlation at finite temperature.
Cite
@article{arxiv.quant-ph/0402073,
title = {Two qubits entanglement dynamics in a symmetry-broken environment},
author = {Marco Lucamarini and Simone Paganelli and Stefano Mancini},
journal= {arXiv preprint arXiv:quant-ph/0402073},
year = {2009}
}
Comments
10 pages, 2 figures