Reversible quantum operations and their application to teleportation
Quantum Physics
2009-10-30 v1
Abstract
Quantum operations provide a general description of the state changes allowed by quantum mechanics. Simple necessary and sufficient conditions for an ideal quantum operation to be reversible by a unitary operation are derived in this paper. These results generalize recent work on reversible measurements by Mabuchi and Zoller [Phys. Rev. Lett. {\bf 76}, 3108 (1996)]. Quantum teleportation can be understood as a special case of the problem of reversing quantum operations. We characterize completely teleportation schemes of the type proposed by Bennett {\it et al.} [Phys. Rev. Lett. {\bf 70}, 1895 (1993)].
Cite
@article{arxiv.quant-ph/9608001,
title = {Reversible quantum operations and their application to teleportation},
author = {M. A. Nielsen and Carlton M. Caves},
journal= {arXiv preprint arXiv:quant-ph/9608001},
year = {2009}
}
Comments
10 pages, Revtex