Portal de Periódicos da CAPES

Simple formula for the persistent current in disordered one-dimensional rings: Parity and interaction effects

1994; American Physical Society; Volume: 50; Issue: 7 Linguagem: Inglês

10.1103/physrevb.50.4921

1095-3795

Alexander O. Gogolin, Nikolay Prokof’ev,

Random lasers and scattering media

The general expression for the persistent current of one-dimensional noninteracting electrons in a disorder potential with smooth scattering data is derived for zero temperature. On the basis of this expression the parity effects are discussed. It is shown that the electron-electron interaction may give rise to an unusual size dependence of the current amplitude due to renormalized backscattering from the disorder potential.