Transmission distribution, P(\ln T), of 1D disordered chain: low-T tail
| dc.creator | Apalkov, V. M. | |
| dc.creator | Raikh, M. E. | |
| dc.date | 2004-08-29 | |
| dc.date.accessioned | 2026-07-07T03:00:01Z | |
| dc.date.available | 2026-07-07T03:00:01Z | |
| dc.description | We demonstrate that the tail of transmission distribution through 1D disordered Anderson chain is a strong function of the correlation radius of the random potential, $a$, even when this radius is much shorter than the de Broglie wavelength, $k_F^{-1}$. The reason is that the correlation radius defines the phase volume of the trapping configurations of the random potential, which are responsible for the low-$T$ tail. To see this, we perform the averaging over the low-$T$ disorder configurations by first introducing a finite lattice spacing $\sim a$, and then demonstrating that the prefactor in the corresponding functional integral is exponentially small and depends on $a$ even as $a \to 0$. Moreover, we demonstrate that this restriction of the phase volume leads to the dramatic change in the shape of the tail of ${\cal P}(\ln T)$ from universal Gaussian in $\ln T $ to a simple exponential (in $\ln T $) with exponent depending on $a$. Severity of the phase-volume restriction affects the shape of the low-$T$ disorder configurations transforming them from almost periodic (Bragg mirrors) to periodically-sign-alternating (loose mirrors). | |
| dc.description | 14 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0408642 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0408642 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/24734 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Transmission distribution, P(\ln T), of 1D disordered chain: low-T tail | |
| dc.type | text |