Wigner Surmise For Domain Systems

Details Wigner Surmise For Domain Systems Wigner Surmise For Domain Systems

2007-12-12

arxiv.org/abs/0712.2011v1

J. Stat. Phys. 132, 187 (2008)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1007/s10955-008-9548-5

In random matrix theory, the spacing distribution functions $p^{(n)}(s)$ are well fitted by the Wigner surmise and its generalizations. In this approximation the spacing functions are completely described by the behavior of the exact functions in the limits s->0 and s->infinity. Most non equilibrium systems do not have analytical solutions for the spacing distribution and correlation functions. Because of that, we explore the possibility to use the Wigner surmise approximation in these systems. We found that this approximation provides a first approach to the statistical behavior of complex systems, in particular we use it to find an analytical approximation to the nearest neighbor distribution of the annihilation random walk.

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