title: Aspect-ratio scaling and the stiffness exponent theta for Ising spin glasses.
abstract: We introduce the technique of aspect-ratio scaling to study the scale dependence of interfacial energies in Ising spin glasses, and we show how one can use it to determine the stiffness exponent theta in a clean way, with results that are independent of the domain-wall-forcing boundary conditions imposed on the system. In space dimension d = 2 we obtain theta = -0.282(3) for a Gaussian distribution of exchange interactions.
authors.affiliation: Department of Physics & Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom.
authors.forename: A C
authors.initials: AC
authors.lastname: Carter
authors.forename: A J
authors.initials: AJ
authors.lastname: Bray
authors.forename: M A
authors.initials: MA
authors.lastname: Moore