Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2003-02-21
Phys. Rev. E 68, 056115 (2003)
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 pages, 2 figures, revtex4; the distribution function of the total and the disorder energy is included
Scientific paper
10.1103/PhysRevE.68.056115
We study the energy distribution function $\rho (E)$ for interfaces in a random field environment at zero temperature by summing the leading terms in the perturbation expansion of $\rho (E)$ in powers of the disorder strength, and by taking into account the non perturbational effects of the disorder using the functional renormalization group. We have found that the average and the variance of the energy for one-dimensional interface of length $L$ behave as, $
Fedorenko Andrei A.
Stepanow Semjon
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