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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Published on: September 8, 2023

Heat exchange mediated by a quantum system.

George Y Panasyuk1, George A Levin, Kirk L Yerkes

  • 1Aerospace Systems Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, USA. George.Panasyuk.ctr@wpafb.af.mil

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|September 26, 2012
PubMed
Summary
This summary is machine-generated.

This study explores quantum heat transfer using the quantum Langevin equation and Drude-Ullersma model. It derives general heat current and thermal conductance formulas, explaining Fourier

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Area of Science:

  • Quantum thermodynamics
  • Condensed matter physics
  • Statistical mechanics

Background:

  • Understanding quantum heat transfer is crucial for nanoscale thermal management.
  • Existing models often simplify reservoir interactions or mediator properties.

Purpose of the Study:

  • To develop a general theoretical framework for quantum heat transfer.
  • To investigate the origins of Fourier's law and anomalous heat currents.
  • To explore the concept of minimum thermal conductivity in quantum systems.

Main Methods:

  • Generalized quantum Langevin equation
  • Drude-Ullersma model for thermal reservoirs
  • Analysis of arbitrary coupling strengths and temperature regimes

Main Results:

  • Derivation of general expressions for heat current and thermal conductance.
  • Explanation of Fourier's law in finite quantum systems.
  • Investigation of anomalous heat currents observed in scanning tunneling microscopy experiments.

Conclusions:

  • The developed approach provides a versatile tool for studying quantum heat transfer.
  • It offers insights into fundamental thermal transport phenomena at the quantum level.
  • Potential applications include understanding nanoscale heat flow and minimum thermal conductivity.