Maximally Entangled Mixed States and Conditional Entropies
Quantum Physics
2009-11-13 v1
Abstract
The maximally entangled mixed states of Munro, James, White, and Kwiat [Phys. Rev. A {\bf 64} (2001) 030302] are shown to exhibit interesting features vis a vis conditional entropic measures. The same happens with the Ishizaka and Hiroshima states [Phys. Rev. A {\bf 62} 022310 (2000)], whose entanglement-degree can not be increased by acting on them with logic gates. Special types of entangled states that do not violate classical entropic inequalities are seen to exist in the space of two qubits. Special meaning can be assigned to the Munro {\it et al.} special participation ratio of 1.8.
Keywords
Cite
@article{arxiv.quant-ph/0603056,
title = {Maximally Entangled Mixed States and Conditional Entropies},
author = {J. Batle and M. Casas and A. Plastino and A. R. Plastino},
journal= {arXiv preprint arXiv:quant-ph/0603056},
year = {2009}
}