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Quantum measurement and the quantum to classical transition in a non-linear quantum oscillator

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posted on 05.04.2013 by Mark Everitt, W.J. Munro, T.P. Spiller
We study a non-linear quantum mechanical oscillator, acting as a measurement device. Candidate systems for realising such apparatus range from superconducting devices through to nano-mechanical resonators. The measurement device comprises an oscillator circuit where the dynamics of expectation values, in its correspondence limit, are either chaotic-like or periodic depending on the measured state of the quantum object – in this case a qubit. In a previous work we showed how the classical like trajectories of such a quantum system can act as a model of a projective measurement process. Here we investigate the quantum to classical transition of the measurement device and postulate criteria for realisation of an effective implementation of such a device.

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School

  • Science

Department

  • Physics

Citation

EVERITT, M.J., MUNRO, W.J. and SPILLER, T.P., 2011. Quantum measurement and the quantum to classical transition in a non-linear quantum oscillator. Journal of Physics: Conference Series, 306, 012045. 5th International Workshop DICE2010, 7pp.

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IOP Publishing Ltd. © the authors

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VoR (Version of Record)

Publication date

2011

Notes

This article was published in the Journal of Physics: Conference Series [© IOP Publishing] under a Creative Commons Attribution licence.

ISSN

1742-6588

Language

en

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