Spectrum of relaxation times in disordered conductors
Al'tshuler B. L. , Kravtsov V. E. , Lerner I. V.
The response of a disordered conductor to an external-field pulse with a ^-function temporal profile decays in accordance with exp [ — {\n2t)/%u] at long times t. This result means that the conductor has a spectrum of relaxation times, whose distribution has a logarithmically normal asymptotic behavior.