Production of entanglement with highly-mixed states
Quantum Physics
2012-04-11 v1
Abstract
We study production of entanglement with highly-mixed states. We find that entanglement between highly mixed states can be generated via a direct unitary interaction even when both states have purities arbitrarily close to zero. This indicates that purity of a subsystem is not required for entanglement generation. Our result is in contrast to previous studies where the importance of the subsystem purity was emphasized.
Cite
@article{arxiv.1204.2077,
title = {Production of entanglement with highly-mixed states},
author = {Minsu Kang and M. S. Kim and Hyunseok Jeong},
journal= {arXiv preprint arXiv:1204.2077},
year = {2012}
}
Comments
4 pages, 5 figures