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Work Generation from Thermal Noise by Quantum Phase-Sensitive Observation
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-07-20 , DOI: 10.1103/physrevlett.127.040602 Tomas Opatrný 1 , Avijit Misra 2, 3 , Gershon Kurizki 3
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-07-20 , DOI: 10.1103/physrevlett.127.040602 Tomas Opatrný 1 , Avijit Misra 2, 3 , Gershon Kurizki 3
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We put forward the concept of work extraction from thermal noise by phase-sensitive (homodyne) measurements of the noisy input followed by (outcome-dependent) unitary manipulations of the postmeasured state. For optimized measurements, noise input with more than one quantum on average is shown to yield heat-to-work conversion with efficiency and power that grow with the mean number of input quanta, the efficiency and the inverse temperature of the detector. This protocol is shown to be advantageous compared to common models of information and heat engines.
中文翻译：
通过量子相敏观测从热噪声中产生功
我们提出了从热噪声中提取功的概念，通过对噪声输入进行相位敏感（零差）测量，然后对后测量状态进行（结果相关）单一操作。对于优化的测量，平均超过一个量子的噪声输入会产生热工作转换，其效率和功率随着输入量子的平均数量、效率和探测器的逆温度而增长。与常见的信息和热机模型相比，该协议显示出优势。
更新日期：2021-07-20
中文翻译：
通过量子相敏观测从热噪声中产生功
我们提出了从热噪声中提取功的概念，通过对噪声输入进行相位敏感（零差）测量，然后对后测量状态进行（结果相关）单一操作。对于优化的测量，平均超过一个量子的噪声输入会产生热工作转换，其效率和功率随着输入量子的平均数量、效率和探测器的逆温度而增长。与常见的信息和热机模型相比，该协议显示出优势。
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