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Divergence of the Classical trajectories and Weak Localization | | I.L. Aleiner
; A.I. Larkin
; | | Date: |
16 Mar 1996 | | Subject: | cond-mat | | Abstract: | 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. | | Source: | arXiv, cond-mat/9603121 | | Services: | Forum | Review | PDF | Favorites | |
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