0605244v3

related topics
{state, algorithm, problem}
{qubit, qubits, gate}
{state, phys, rev}
{alice, bob, state}
{measurement, state, measurements}
{spin, pulse, spins}
{entanglement, phys, rev}
{error, code, errors}
{trap, ion, state}
{cos, sin, state}

Perfect Cluster States from Imperfect Global Entanglement

Michael C. Garrett, David L. Feder

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.

oai_identifier:
oai:arXiv.org:quant-ph/0605244
categories:
quant-ph cond-mat.other
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
doi:
10.1088/1367-2630/10/3/033009
arxiv_id:
quant-ph/0605244
journal_ref:
New J. Phys. 10 (2008) 033009
created:
2006-05-29
updated:
2008-02-13

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