Manifestly non-Gaussian fluctuations in superconductor-normal metal tunnel nanostructures |
| |
Authors: | Laakso M A Heikkilä T T Nazarov Yuli V |
| |
Institution: | Low Temperature Laboratory, Aalto University, Aalto, Finland. matti.laakso@aalto.fi |
| |
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≈2Δ. The fluctuations can be measured by monitoring the time-dependent electric current through the system. This makes the setup suitable for the realization of feedback schemes which can be used to stabilize the temperature to the desired value. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|