Purification of two-qubit mixed states
Quantum Physics
2007-05-23 v2
Abstract
We find the necessary and sufficient condition under which two two-qubit mixed states can be purified into a pure maximally entangled state by local operations and classical communication. The optimal protocol for such transformation is obtained. This result leads to a necessary and sufficient condition for the exact purification of copies of a two-qubit state.
Keywords
Cite
@article{arxiv.quant-ph/0205107,
title = {Purification of two-qubit mixed states},
author = {Enric Jane},
journal= {arXiv preprint arXiv:quant-ph/0205107},
year = {2007}
}
Comments
Small corrections. Final version