Dark-State-Induced Heat Rectification
- URL: http://arxiv.org/abs/2203.12623v2
- Date: Mon, 12 Sep 2022 17:59:51 GMT
- Title: Dark-State-Induced Heat Rectification
- Authors: Kasper Poulsen, Nikolaj T. Zinner
- Abstract summary: Heat and noise control is essential for the continued development of quantum technologies.
Heat oscillators allow for heat transport in one configuration of two baths but not the reverse.
We show that the heat rectification effect is seen for a large range of parameters, and it is robust towards both decay and dephasing.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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.
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