Optimal purification of single qubits
Quantum Physics
2009-10-31 v1
Abstract
We introduce a new decomposition of the multiqubit states of the form and employ it to construct the optimal single qubit purification procedure. The same decomposition allows us to study optimal quantum cloning and state estimation of mixed states.
Cite
@article{arxiv.quant-ph/9812075,
title = {Optimal purification of single qubits},
author = {J. I. Cirac and A. K. Ekert and C. Macchiavello},
journal= {arXiv preprint arXiv:quant-ph/9812075},
year = {2009}
}
Comments
4 pages, 1 figure