SciPost Phys. 17, 140 (2024) ·
published 21 November 2024
|
· pdf
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.
Mr Scheer: "We thank the referee for their..."
in Submissions | report on The superconducting clock-circuit: Improving the coherence of Josephson radiation beyond the thermodynamic uncertainty relation