Invariance of quantum correlations under local channel for a bipartite quantum state
Quantum Physics
2013-03-06 v2
Abstract
We show that the quantum discord and the measurement induced non-locality (MiN) in a bipartite quantum state is invariant under the action of a local quantum channel if and only if the channel is invertible. In particular, these quantities are invariant under a local unitary channel.
Keywords
Cite
@article{arxiv.1209.5035,
title = {Invariance of quantum correlations under local channel for a bipartite quantum state},
author = {Ali Saif M. Hassan and Pramod S. Joag},
journal= {arXiv preprint arXiv:1209.5035},
year = {2013}
}
Comments
4 pages, no figures, proof of theorm 2 modified