Thermal conduction in a harmonic chain coupled to two cavity-optomechanical systems
Thermal conduction in a harmonic chain coupled to two cavity-optomechanical systems
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DOI：
10.1103/physreva.103.053509
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发表时间：
2021-05
影响因子：
2.9
通讯作者：
Ziqiang He;G. Dong
中科院分区：
文献类型：
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作者：
Ziqiang He;G. Dong
为了研究统计物理中的一维热导率，我们提出了一个包含一维谐振子链的模型，其两端耦合两个腔光力学系统。在该模型中，腔光力学系统作为两个激光工程热储。在两个热源的有效温度不相等的情况下，可以产生热流链，并研究了热流链的经典特征和量子特征。进一步证明了该模型的热通量不服从傅里叶定律。通过控制现场振动频率可以诱发热开关现象。最后，我们建议应用两个机械振荡器之间的相关性来测量通过链的热通量。
We propose a model including a one-dimensional harmonic chain of oscillators whose two ends coupled two cavity-optomechanical systems for studying one-dimensional thermal conductivity in statistical physics. In this model, the cavity-optomechanical systems function as two laser-engineerable thermal reservoirs. When the effective temperatures of the two reservoirs are not equal, a heat flux through the chain can be generated, and moreover the classical and quantum features of the heat flux have been studied. We further show that the heat flux does not obey the Fourier's law in this model. The thermal switching phenomenon could be induced by controlling the on-site vibrational frequency. Finally, we propose to apply the correlation between two mechanical oscillators to measure the heat flux through the chain.