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Open Quantum Systems Decoherence

Nonexponential quantum decay under environmental decoherence

arXiv

Authors: M. Beau, J. Kiukas, I. L. Egusquiza, A. del Campo

Year

2017

Paper ID

45074

Status

Preprint

Abstract Read

~2 min

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N/A

Abstract

An unstable quantum state generally decays following an exponential law, as environmental decoherence is expected to prevent the decay products from recombining to reconstruct the initial state. Here we show the existence of deviations from exponential decay in open quantum systems under very general conditions. Our results are illustrated with the exact dynamics under quantum Brownian motion and suggest an explanation of recent experimental observations.

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This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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An unstable quantum state generally decays following an exponential law, as environmental decoherence is expected to prevent the decay products from recombining to reconstruct...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1706.06943 [2] arXiv https://arxiv.org/abs/1706.06943 [3] Publisher https://arxiv.org/abs/1706.06943

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