Divergence of the Classical trajectories and Weak Localization

Дата и время публикации : 1996-03-16T19:45:27Z

Авторы публикации и институты :
I. L. Aleiner
A. I. Larkin

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 23 pages, 4 .eps figures; Major revisions in Secs. 3, 4, and 6; To appear in Phys. Rev. B, Nov. 15, 1996
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: We study the weak localization correction (WLC) to transport coefficients of a system of electrons in a static long-range potential (e.g. an antidot array or ballistic cavity). We found that the weak localization correction to the current response is delayed by the large time $t_E = lambda^{-1} |ln hbar|$, where $lambda$ is the Lyapunov exponent. In the semiclassical regime $t_E$ is much larger than the transport lifetime. Thus, the fundamental characteristic of the classical chaotic motion, Lyapunov exponent, may be found by measuring the frequency or temperature dependence of WLC.

Category: Physics