Non-equilibrium noise in a mesoscopic conductor: microscopic analysis
| dc.creator | Altshuler, B. L. | |
| dc.creator | Levitov, L. S. | |
| dc.creator | Yakovets, A. Yu. | |
| dc.date | 1994-05-23 | |
| dc.date.accessioned | 2026-07-07T03:07:16Z | |
| dc.date.available | 2026-07-07T03:07:16Z | |
| dc.description | Current fluctuations are studied in a mesoscopic conductor using non-equilibrium Keldysh technique. We derive a general expression for the fluctuations in the presence of a time dependent voltage, valid for arbitrary relation between voltage and temperature. Two limits are then treated: a pulse of voltage and a DC voltage. A pulse of voltage causes phase sensitive current fluctuations for which we derive microscopically an expression periodic in $\int V(t)dt$ with the period $h/e$. Applied to current fluctuations in Josephson circuits caused by phase slips, it gives an anomalous contribution to the noise with a logarithmic singularity near the critical current. In the DC case, we get quantum to classical shot noise reduction factor 1/3, in agreement with recent results of Beenakker and Büttiker. | |
| dc.description | 6 pages, figures by request, RevTeX, Landau Institute preprint 261/6437 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9405061 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9405061 | |
| dc.identifier | JETP Lett. 59, 857 (1994) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/27109 | |
| dc.subject | Condensed Matter | |
| dc.title | Non-equilibrium noise in a mesoscopic conductor: microscopic analysis | |
| dc.type | text |