A. D. Zaikin, D. S. Golubev
Published 1999-11-19Version 1
We present a nonperturbative approach which allows to evaluate the weak localization correction to the conductivity of disordered conductors in the presence of interactions. The effect of the electron-electron interaction on the magnetoconductance is described by the function A(t)\exp (-f(t)). The dephasing time is determined only by f(t), and this time remains finite down to T=0 due to the electron-electron interactions. In order to establish the relation between our nonperturbative analysis and the perturbative results the effect of interaction on the pre-exponent A(t) should be taken into account. The dephasing time cannot be unambiguously determined from a perturbative calculation.
Comments: 6 pages. Invited talk at LT-22 (Helsinki, August 4-11, 1999). To be published in Physica B (March/April 2000). The paper provides a brief outline of the main results of cond-mat/9907494
Influence of Interaction on Weak Localization
Quantum decoherence of interacting electrons in arrays of quantum dots and diffusive conductors
Low-temperature dephasing in disordered conductors: experimental aspects
