Four-qubit cluster state entanglement in the presence of decoherence

G. Gilbert; Y. S. Weinstein

doi:10.1117/12.850328

16 April 2010 Four-qubit cluster state entanglement in the presence of decoherence

G. Gilbert, Y. S. Weinstein

Author Affiliations +

Proceedings Volume 7702, Quantum Information and Computation VIII; 77020J (2010) https://doi.org/10.1117/12.850328
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

G. Gilbert and Y. S. Weinstein "Four-qubit cluster state entanglement in the presence of decoherence", Proc. SPIE 7702, Quantum Information and Computation VIII, 77020J (16 April 2010); https://doi.org/10.1117/12.850328

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