Transfer Matrix Simulations of 2 d -Interfaces in Three-Dimensional Random Media
- 1 February 1989
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 8 (3) , 233-238
- https://doi.org/10.1209/0295-5075/8/3/005
Abstract
To study Ising interfaces subject to quenched disorder, a transfer matrix method is devised in which a finite-length string evolves in "time"; the "world-sheet" left behind yielding the interface. We have thus mapped out exact configurations for long ribbons of width l ≤ 16, subject to both random bond and random field impurities. We give estimates for the effective roughening, and energy barrier exponents, and discuss their implications.Keywords
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