TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.17.5.140
TI  - The superconducting clock-circuit: Improving the coherence of Josephson radiation beyond the thermodynamic uncertainty relation
PY  - 2024/11/21
UR  - https://scipost.org/SciPostPhys.17.5.140
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 17
IS  - 5
SP  - 140
A1  - Scheer, David
AU  - Völler, Jonas
AU  - Hassler, Fabian
AB  - In the field of superconducting electronics, the on-chip generation of AC radiation is essential for further advancements. Although a Josephson junction can emit AC radiation from a purely DC voltage bias, the coherence of this radiation is significantly limited by Johnson-Nyquist noise. We relate this limitation to the thermodynamic uncertainty relation (TUR) in the field of stochastic thermodynamics. Recent findings indicate that the thermodynamic uncertainty relation can be broken by a classical pendulum clock. We demonstrate how the violation of the TUR can be used as a design principle for radiation sources by showing that a superconducting clock circuit emits coherent AC radiation from a DC bias.
ER  -

@Article{10.21468/SciPostPhys.17.5.140,
	title={{The superconducting clock-circuit: Improving the coherence of Josephson radiation beyond the thermodynamic uncertainty relation}},
	author={David Scheer and Jonas Völler and Fabian Hassler},
	journal={SciPost Phys.},
	volume={17},
	pages={140},
	year={2024},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.17.5.140},
	url={https://scipost.org/10.21468/SciPostPhys.17.5.140},
}