Coherence-enhanced thermal amplification for small systems

Research output: Contribution to journalJournal articlepeer-review

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.

Original languageEnglish
Article number125753
JournalPhysica A: Statistical Mechanics and its Applications
Volume569
Number of pages10
ISSN0378-4371
DOIs
Publication statusPublished - 1 May 2021

    Research areas

  • Quantum coherence, Three-level system, Thermal amplification, Thermal conductance

ID: 259981898