Manifestly non-Gaussian fluctuations in superconductor-normal metal tunnel nanostructures
M. A. Laakso, T. T. Heikkil\"a, and Yuli V. Nazarov
TL;DR
This paper introduces a mesoscopic SINIS structure that exhibits strong, non-Gaussian energy and temperature fluctuations under bias, enabling new control and measurement techniques in superconducting hybrid systems.
Contribution
It proposes a novel experimental setup showing non-Gaussian fluctuations in superconductor-normal metal nanostructures, with potential for feedback control of temperature.
Findings
Demonstrates non-Gaussian fluctuations near quasiparticle tunneling threshold
Proposes measurement via electric current monitoring
Enables feedback schemes for temperature stabilization
Abstract
We propose a mesoscopic setup which exhibits strong and manifestly non-Gaussian fluctuations of energy and temperature when suitably driven out of equilibrium. The setup consists of a normal metal island (N) coupled by tunnel junctions (I) to two superconducting leads (S), forming a SINIS structure, and is biased near the threshold voltage for quasiparticle tunneling, . The fluctuations can be measured by monitoring the time-dependent electric current through the system, which makes the setup suitable for the realization of feedback schemes which allow to stabilize the temperature to the desired value.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.