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arXiv · 1503.02591

Environment assisted speed-up of the field evolution in cavity QED

A. D. Cimmarusti·Z. Yan·B. D. Patterson·L. P. Corcos·L. A. Orozco·S. Deffner
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Abstract

We measure the quantum speed of the state evolution of the field in a weakly-driven optical cavity QED system. To this end, the mode of the electromagnetic field is considered as a quantum system of interest with a preferential coupling to a tunable environment: the atoms. By controlling the environment, i.e., changing the number of atoms coupled to the optical cavity mode, an environment assisted speed-up is realized: the quantum speed of the state re-population in the optical cavity increases with the coupling strength between the optical cavity mode and this non-Markovian environment (the number of atoms).

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A. D. Cimmarusti, Z. Yan, B. D. Patterson, L. P. Corcos, L. A. Orozco, S. Deffner. 2015-03-09. Environment assisted speed-up of the field evolution in cavity QED. https://doi.org/10.1103/physrevlett.114.233602

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