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Updated: Jul 13, 2026
05:39
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Normal-metal-superconductor tunnel junction as a Brownian refrigerator
1Low Temperature Laboratory, Helsinki University of Technology, PO Box 3500, 02015 TKK, Finland.
Physical Review Letters
|August 7, 2007
Summary
A hot resistor
Area of Science:
- Condensed matter physics
- Quantum thermodynamics
Background:
- Superconducting junctions exhibit unique thermal properties.
- Maxwell's demon analogies are explored in nanoscale heat transfer.
Purpose of the Study:
- Investigate thermal noise-induced cooling in a normal metal-insulator-superconductor junction.
- Explore a novel heat rectification regime using thermal gradients.
Main Methods:
- Analytical calculations for high impedance environments.
- Numerical simulations for general resistance values.
Main Results:
- Demonstrated thermal noise catalysis for heat removal.
- Identified a unique heat flux reversal regime.
Conclusions:
- The proposed NIS junction offers a tunable cooling mechanism.
- Experimental feasibility is assessed for practical applications.
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