Quantum Dynamics of Bound Entangled States
Quantum Physics
2007-05-23 v1
Abstract
By using the partial transpose and realignment method,we study the time evolution of the bound entanglement under the bilinear-biquadratic Hamiltonian. For the initial Horodecki's bound entangled state, it keeps bound entangled for some time, while for the initial bound entangled states constructed from the unextendable product basis, they become free once the time evolution begins. The time evolution provides a new way to construct bound entangled states, and also gives a method to free bound entanglement.
Cite
@article{arxiv.quant-ph/0611177,
title = {Quantum Dynamics of Bound Entangled States},
author = {Guo-Qiang Zhu and Xiaoguang Wang},
journal= {arXiv preprint arXiv:quant-ph/0611177},
year = {2007}
}
Comments
5 pages, 3 figures