Adaptive versus non-adaptive strategies for quantum channel discrimination
Quantum Physics
2013-05-29 v1
Abstract
We provide a simple example that illustrates the advantage of adaptive over non-adaptive strategies for quantum channel discrimination. In particular, we give a pair of entanglement-breaking channels that can be perfectly discriminated by means of an adaptive strategy that requires just two channel evaluations, but for which no non-adaptive strategy can give a perfect discrimination using any finite number of channel evaluations.
Keywords
Cite
@article{arxiv.0909.0256,
title = {Adaptive versus non-adaptive strategies for quantum channel discrimination},
author = {Aram W. Harrow and Avinatan Hassidim and Debbie W. Leung and John Watrous},
journal= {arXiv preprint arXiv:0909.0256},
year = {2013}
}
Comments
11 pages