A multifunctional quantum thermal device: with and without inner
coupling
- URL: http://arxiv.org/abs/2008.12486v2
- Date: Tue, 26 Jan 2021 08:21:45 GMT
- Title: A multifunctional quantum thermal device: with and without inner
coupling
- Authors: Yong Huangfu, Shifan Qi, and Jun Jing
- Abstract summary: We discuss the role of the inner coupling as well as the steady-state quantum coherence in these thermal functions.
A high-sensitive thermometer for the low-temperature terminal can be established without the assistance from the inner coupling.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: A three-level system attached to three thermal baths is manipulated to be a
microscopic thermal device integrating a valve, a refrigerator, an amplifier,
and a thermometer in the quantum regime, via tuning the inner coupling strength
of the system and the temperatures of the external baths. We discuss the role
of the inner coupling as well as the steady-state quantum coherence in these
thermal functions using the Redfield master equation under a partial secular
approximation. A high-sensitive thermometer for the low-temperature terminal
can be established without the assistance from the inner coupling of the
system. Our study of this multifunctional thermal device provides a deeper
insight to the underlying quantum thermodynamics associated with the quantum
coherence.
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