Decoherence versus dynamical Casimir effect
Decoherence versus dynamical Casimir effect
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DOI：
10.1088/1464-4266/7/3/016
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发表时间：
2004-08
期刊：
影响因子：
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通讯作者：
R. Schutzhold;M. Tiersch
中科院分区：
文献类型：
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作者：
R. Schutzhold;M. Tiersch
通过相位和幅度阻尼两个简单的例子，研究了退相干对动态卡西米尔效应的影响。即使没有耗散能量（即纯相阻尼），通过与环境耦合（储层理论）引起退相干，产生的粒子数量也可以显着减少。对于一个简单的微观模型，已证明介质内的自发衰变会产生这些问题；拉比振荡在这方面更具优势。鉴于最近提出的动态卡西米尔效应的实验验证，这些发现尤其相关。
By means of two simple examples, phase and amplitude damping, the impact of decoherence on the dynamical Casimir effect is investigated. Even without dissipating energy (i.e., pure phase damping), the amount of created particles can be diminished significantly via the coupling to the environment (reservoir theory) inducing decoherence. For a simple microscopic model, it is demonstrated that spontaneous decays within the medium generate those problems; Rabi oscillations are far more advantageous in that respect. These findings are particularly relevant in view of a recently proposed experimental verification of the dynamical Casimir effect.