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Overcoming decoherence in the collapse and revival of spin Schrodinger-cat states

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journal contribution
posted on 05.04.2013, 10:49 authored by Mark EverittMark Everitt, W.J. Munro, T.P. Spiller
In addition to being a very interesting quantum phenomenon, Schrödinger-cat-state swapping has the potential for application in the preparation of quantum states that could be used in metrology and other quantum processing. We study in detail the effects of field decoherence on a Schrödinger-cat-state-swapping system comprising a set of identical qubits, or spins, all coupled to a field mode. We demonstrate that increasing the number of spins actually mitigates the effects of field decoherence on the collapse and revival of a spin Schrödinger-cat state, which could be of significant utility in quantum metrology and other quantum processing.

History

School

  • Science

Department

  • Physics

Citation

EVERITT, M.J., MUNRO, W.J. and SPILLER, T.P., 2012. Overcoming decoherence in the collapse and revival of spin Schrödinger-cat states. Physical Review A, 85 (2), 5 pp.

Publisher

© American Physical Society

Version

VoR (Version of Record)

Publication date

2012

Notes

This article was published in the journal, Physical Review A [© American Physical Society] and the definitive version is available at: http://dx.doi.org/10.1103/PhysRevA.85.022113

ISSN

1050-2947

Language

en