We consider a thermodynamic system in which the working fluid is a quantised harmonic oscillator subjected to rapid periodic squeezing operations at a rate much larger than its resonance frequency. This device could potentially be constructed using pulsed optomechanical interactions. It can operate as a heat pump, a heat engine, or a refrigerator. We predict that the oscillator can be quantum squeezed for portions of the thermal cycle, and may be transiently cooled to temperatures below that of the cold bath. In addition, we show that the heat engine and refrigerator behaviours vanish when the system-bath coupling is treated using the conventional rotating wave approximation, an effect not seen in previous optomechanical engine proposals.

中文翻译：

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来自快速光力学的量子热机

我们考虑一个热力学系统，其中工作流体是一个量子化的谐振子，以远大于其共振频率的速率进行快速周期性挤压操作。该设备有可能使用脉冲光机械相互作用来构建。它可以用作热泵、热机或冰箱。我们预测振荡器可以在部分热循环中被量子压缩，并且可能会暂时冷却到低于冷浴温度的温度。此外，我们表明，当使用传统的旋转波近似处理系统-浴槽耦合时，热机和制冷机的行为会消失，这种效果在以前的光机械发动机提案中是没有的。