Heat and noise control is essential for the continued development of quantum technologies. For this purpose, a particularly powerful tool is the heat rectifier, which allows for heat transport in one configuration of two baths but not the reverse. Here we propose a class of rectifiers that exploits the unidirectionality of a low temperature bath to force the system into a dark state, thus blocking heat transport in one configuration of the two baths. However, if the two baths are switched around, a heat current is observed. An implementation using a qutrit coupled to two harmonic oscillators is proposed and rectification values beyond ${10}^3$ are achieved for realistic parameter values. Furthermore, we show that the heat current can be amplified by an order of magnitude through external driving without diminishing the diode functionality. The heat rectification effect is seen for a large range of parameters and it is robust towards both decay and dephasing.

中文翻译：

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暗态诱导热整流

热量和噪声控制对于量子技术的持续发展至关重要。为此，一个特别强大的工具是热整流器，它允许在两个浴槽的一种配置中进行热传输，但不能反过来。在这里，我们提出了一类整流器，它利用低温浴的单向性来迫使系统进入黑暗状态，从而在两个浴的一个配置中阻止热传输。但是，如果切换两个浴槽，则会观察到热电流。提出了一种使用耦合到两个谐波振荡器的qutrit的实现，并且整流值超出${10}^3$实现了现实的参数值。此外，我们表明通过外部驱动可以将热电流放大一个数量级，而不会降低二极管的功能。对于大范围的参数，可以看到热整流效应，并且它对衰减和去相位都具有鲁棒性。