Copying of entangled states and the degradation of correlations
Quantum Physics
2015-06-26 v1
Abstract
We investigate the degree to which entanglement survives when a correlated pair of two-state systems are copied using either local or non-local processes. We show how the copying process degrades the entanglement, due to a residual correlation between the copied output and the copying machine (itself made of qubits).
Keywords
Cite
@article{arxiv.quant-ph/9808043,
title = {Copying of entangled states and the degradation of correlations},
author = {Pawel Masiak and Peter L. Knight},
journal= {arXiv preprint arXiv:quant-ph/9808043},
year = {2015}
}
Comments
8 pages, RevTex, 6 EPS figures, submitted to Phys. Rev. A