Can backscattering off an impurity enhance the current?
| dc.creator | Feldman, D. E. | |
| dc.creator | Gefen, Yuval | |
| dc.date | 2001-04-28 | |
| dc.date.accessioned | 2026-07-07T02:41:14Z | |
| dc.date.available | 2026-07-07T02:41:14Z | |
| dc.description | It is well known that while forward scattering has no effect on the conductance of one-dimensional systems, backscattering off a static impurity suppresses the current. We study the effect of a time-dependent point impurity on the conductance of a one-channel quantum wire. At strong repulsive interaction (Luttinger liquid parameter g<1/2), backscattering renders the conductance greater than its value e^2/h in the absence of the impurity. A possible experimental realization of our model is a constricted Hall bar at fractional filling factors ν=1/(2n+1) with a time-dependent voltage at the constriction. | |
| dc.description | 5 pages, Revtex | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0104558 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0104558 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17666 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Can backscattering off an impurity enhance the current? | |
| dc.type | text |