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arXiv 2106.09653quant-ph
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利用量子相敏观测从热噪声中产生功

Work Generation from Thermal Noise by Quantum Phase-Sensitive Observation

Tomas Opatrný, Avijit Misra, Gershon Kurizki

摘要:

我们提出了从热噪声中提取工作的概念,通过对噪声输入进行相位敏感(零差)测量,然后对测量后的状态进行(依赖于结果的)幺正操作。对于优化的测量,平均超过一个量子的噪声输入产生热功转换,其效率和功率随着输入量子的平均数、检测器效率及其逆温度而增长。该协议被证明是有利的信息和热机的常见模型相比。

英文摘要:

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 post-measured 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, detector efficiency and its inverse temperature. This protocol is shown to be advantageous compared to common models of information and heat engines.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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