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Proceedings Paper

Four-qubit cluster state entanglement in the presence of decoherence
Author(s): G. Gilbert; Y. S. Weinstein
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Paper Abstract

The highly entangled four qubit cluster state can be used to perform an arbitrary single logical qubit rotation via the techniques of measurement-based quantum computation. In this paper, we explore the relationship between the entanglement in the cluster state and the ability of the state to accurately perform the desired logical rotation. This has important experimental ramifications as realistic cluster state experiments will always be subject to decoherence. We also note the exhibition of entanglement sudden death (ESD) and ask how severely its onset affects the utilization of the cluster state as a means of implementing the arbitrary single logical qubit rotation.

Paper Details

Date Published: 16 April 2010
PDF: 9 pages
Proc. SPIE 7702, Quantum Information and Computation VIII, 77020J (16 April 2010); doi: 10.1117/12.850328
Show Author Affiliations
G. Gilbert, MITRE Corp. (United States)
Y. S. Weinstein, MITRE Corp. (United States)

Published in SPIE Proceedings Vol. 7702:
Quantum Information and Computation VIII
Eric J. Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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