Manifestly non-Gaussian fluctuations in superconductor-normal metal tunnel nanostructures

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, $eV\approx 2\Delta$. 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.

4 pages, 5 figures

References in corpus (6)

• Thermodynamic Reversibility in Feedback Processes
• Normal metal - superconductor tunnel junction as a Brownian refrigerator
• Andreev Current-Induced Dissipation in a Hybrid Superconducting Tunnel Junction
• Real-time observation of discrete Andreev tunneling events
• Are pinholes the cause of excess current in superconducting tunnel junctions? A study of Andreev current in highly resistive junctions
• Giant current fluctuations in an overheated single electron transistor

Cited by in corpus (10)

• Huge thermoelectric effects in ferromagnet-superconductor junctions in the presence of a spin-splitting field
• Quantum heat fluctuations of single particle sources
• Nanoscale Quantum Calorimetry with Electronic Temperature Fluctuations
• Fluctuation theorem for heat transport probed by a thermal electrode
• Energy-Dependence of Nucleus-Nucleus Potential and Friction Parameter in Fusion Reactions
• Statistics of heat exchange between two resistors
• Electronic heat current fluctuations in a quantum dot
• Non-equilibrium and proximity effects in superconductor-normal metal junctions
• Fluctuation of heat current in Josephson junctions
• Theory of temperature fluctuation statistics in superconductor-normal metal tunnel structures