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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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Published on: August 2, 2019

Quantum thermal diode based on two interacting spinlike systems under different excitations.

Jose Ordonez-Miranda¹, Younès Ezzahri¹, Karl Joulain¹

¹Institut Pprime, CNRS, Université de Poitiers, ISAE-ENSMA, Futuroscope Chasseneuil F-86962, France.

Physical Review. E

|March 17, 2017

Summary

This summary is machine-generated.

This study introduces a quantum thermal diode using two interacting spinlike systems. It efficiently rectifies heat current, with performance optimized by system parameters and temperature differences.

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Area of Science:

Quantum thermodynamics
Condensed matter physics
Statistical mechanics

Background:

Quantum thermal devices are crucial for future technologies.
Understanding heat transport in quantum systems is a key challenge.
Rectification of heat flow is essential for thermal management.

Purpose of the Study:

To demonstrate a quantum thermal diode capable of efficient heat current rectification.
To derive analytical expressions for heat current and rectification factor.
To identify conditions for optimizing diode performance.

Main Methods:

Utilizing two interacting spinlike systems coupled to thermal baths.
Solving a master equation for the density matrix.
Deriving analytical expressions for heat current and rectification factor.

Main Results:

Achieved efficient rectification of heat current.
Higher rectification factors observed for lower heat currents.
Maximum heat currents found at specific interaction couplings.
Rectification ability enhanced by differences in excitation frequencies.

Conclusions:

The proposed quantum thermal diode effectively rectifies heat current.
System parameters like excitation frequencies and coupling significantly influence performance.
Explicit optimization conditions for rectification factor and heat current were determined.