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arXiv · 1507.02390

Sudden transition from naked atom decay to dressed atom decay

Wei Zhu·D. L. Zhou
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Abstract

The studies on quantum open system play key roles not only in fundamental problems in quantum mechanics but also in quantum computing and information processes. Here we propose a scheme to use a one dimensional coupling cavity array (CCA) as an artificial electromagnetic environment of a two-level atom. For a finite length of CCA, we find that after a turning time the population of excited state deviates suddenly from the exponential decay. We show that physically this phenomena corresponds to a transition from a naked atom decay to a dressed state decay. We hope that our finding will promote the studies on quantum system with a finite size environment.

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Wei Zhu, D. L. Zhou. 2015-07-09. Sudden transition from naked atom decay to dressed atom decay. https://arxiv.org/abs/1507.02390

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