Controlled heat transfer and thermal rectification in a system of two coupled cavities connected to thermal reservoirs are discussed. Embedding a dispersively interacting two-level atom in one of the cavities allows switching from a thermally conducting to resisting behavior. By properly tuning the atomic state and system–reservoir parameters—in particular, system–reservoir couplings and resonance frequencies—the direction of the current can be reversed. It is shown that a large thermal rectification is achievable in this system by tuning the cavity–reservoir and cavity–atom couplings. Partial recovery of diffusive heat transport in an array of $ N $ cavities containing one dispersively coupled atom is discussed.

中文翻译：

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原子开关，用于控制耦合腔中的热传递

讨论了两个连接到热库的耦合腔体系统中的受控传热和热精馏。在一个腔体中嵌入一个分散相互作用的两能级原子，可以从导热行为转变为抵抗行为。通过适当调整原子态和系统-储层参数，特别是系统-储层耦合和共振频率，可以使电流方向反转。结果表明，通过调节腔-储层和腔-原子的耦合，可以在该系统中实现较大的热整流。讨论了在包含一个分散耦合原子的一系列N型腔中扩散热传递的部分恢复。