加热冷却
Cooling by heating
摘要：
我们引入了通过非相干热光来实际冷却量子系统的想法，从而产生了一种反直觉的“加热冷却”机制。在这种效应中，量子力学模式的非相干占据充当了增强其他模式之间耦合的触发器。这种通过用非相干热量子噪声驱动来有效地使状态更加相干的概念在这里被应用于光机械设置，其中这种效应最自然地发生。我们讨论了两种描述这种情况的方法，其中之一是利用高斯量子态相对于平稳经典随机过程的随机采样。本文概述了用现有技术在光机械系统中实验证明这种反直觉效应的潜力。
英文摘要：
We introduce the idea of actually cooling quantum systems by means of incoherent thermal light, hence giving rise to a counter-intuitive mechanism of "cooling by heating". In this effect, the mere incoherent occupation of a quantum mechanical mode serves as a trigger to enhance the coupling between other modes. This notion of effectively rendering states more coherent by driving with incoherent thermal quantum noise is applied here to the opto-mechanical setting, where this effect occurs most naturally. We discuss two ways of describing this situation, one of them making use of stochastic sampling of Gaussian quantum states with respect to stationary classical stochastic processes. The potential of experimentally demonstrating this counter-intuitive effect in opto-mechanical systems with present technology is sketched.
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