Coherence-enhanced thermal amplification for small systems
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Coherence-enhanced thermal amplification for small systems. / Su, Shanhe; Zhang, Yanchao; Andresen, Bjarne; Chen, Jincan.
In: Physica A: Statistical Mechanics and its Applications, Vol. 569, 125753, 01.05.2021.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Coherence-enhanced thermal amplification for small systems
AU - Su, Shanhe
AU - Zhang, Yanchao
AU - Andresen, Bjarne
AU - Chen, Jincan
PY - 2021/5/1
Y1 - 2021/5/1
N2 - Coherent control of self-contained quantum systems offers the possibility to fabricate smallest thermal transistors. The steady coherence created by the delocalization of electronic excited states arouses nonlinear heat transports in non-equilibrium environment. Applying this result to a three-level quantum system, we show that quantum coherence gives rise to negative differential thermal resistances, making the thermal transistor suitable for thermal amplification. The results demonstrate that quantum coherence facilitates efficient thermal signal processing and can open a new field in the application of quantum thermal management devices. (C) 2021 Elsevier B.V. All rights reserved.
AB - Coherent control of self-contained quantum systems offers the possibility to fabricate smallest thermal transistors. The steady coherence created by the delocalization of electronic excited states arouses nonlinear heat transports in non-equilibrium environment. Applying this result to a three-level quantum system, we show that quantum coherence gives rise to negative differential thermal resistances, making the thermal transistor suitable for thermal amplification. The results demonstrate that quantum coherence facilitates efficient thermal signal processing and can open a new field in the application of quantum thermal management devices. (C) 2021 Elsevier B.V. All rights reserved.
KW - Quantum coherence
KW - Three-level system
KW - Thermal amplification
KW - Thermal conductance
U2 - 10.1016/j.physa.2021.125753
DO - 10.1016/j.physa.2021.125753
M3 - Journal article
VL - 569
JO - Physica A: Statistical Mechanics and its Applications
JF - Physica A: Statistical Mechanics and its Applications
SN - 0378-4371
M1 - 125753
ER -
ID: 259981898