Perfect Cluster States from Imperfect Global Entanglement
Quantum Physics
2008-03-10 v3 Other Condensed Matter
Abstract
The cluster state, the highly entangled state that is the central resource for one-way quantum computing, can be efficiently generated in a variety of physical implementations via global nearest-neighbor interactions. In practice, a systematic phase error is expected in the entangling process, resulting in imperfect cluster states. We present a stochastic measurement technique to generate large perfect cluster states and other graph states with high probability from imperfect cluster states even when their initial entanglement is weak.
Keywords
Cite
@article{arxiv.quant-ph/0605244,
title = {Perfect Cluster States from Imperfect Global Entanglement},
author = {Michael C. Garrett and David L. Feder},
journal= {arXiv preprint arXiv:quant-ph/0605244},
year = {2008}
}
Comments
16 pages IOP style, 4 EPS figures; major revisions to the strategy for growth of cluster states, 2 new figures, several new references; accepted for publication in NJP