Related papers: Experimental demonstration of quantum cooling engine powered by entangled measurement

Experimental demonstration of quantum cooling engine powered by entangled measurement

URL: http://arxiv.org/abs/2302.09948v2
Date: Thu, 23 Feb 2023 12:14:32 GMT
Title: Experimental demonstration of quantum cooling engine powered by entangled measurement
Authors: Ning-Ning Wang, Huan Cao, Chao Zhang, Xiao-Ye Xu, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, and Guang-Can Guo
Abstract summary: We experimentally demonstrate quantum measurement cooling powered by entangled measurement. Results show that quantum measurement is not always detrimental but can be a valuable thermodynamic resource.
Score: 4.350802020391633
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Traditional refrigeration is driven either by external force or an information-feedback mechanism. Surprisingly, the quantum measurement and collapse, which are generally detrimental, can also be used to power a cooling engine even without requiring any feedback mechanism. In this work, we experimentally demonstrate quantum measurement cooling (QMC) powered by entangled measurement by using a novel linear optical simulator. In the simulator, different thermodynamic processes can be simulated by adjusting the energy-level spacing of working substance and the temperature of thermal bath. We show experimentally that, without prior knowledge about the measurement to be made, QMC remains likely to occur. We also demonstrate that QMC is robust against measurement noise. Those experimental results show that quantum measurement is not always detrimental but can be a valuable thermodynamic resource.

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