Voltage fluctuations on a superconductor grain attached to a quantum wire
arXiv:cond-mat/9810303 · doi:10.1006/spmi.1999.0736
Abstract
When a finite superconductor is in contact with a 1D normal conductor, superconducting phase fluctuations lead to power-law response of the normal subsystem. As a result, the charge fluctuations on the superconductor at zero temperature have logarithmic correlator and a 1/ωpower spectrum (1/f-noise). At higher temperatures 1/ωis pushed to the high frequency region, and 1/ω^2 behavior prevails.
5 pages, 3 figures. Figures added