Monte Carlo simulations of spin glasses at low temperatures: Effects of free boundary conditions Academic Article uri icon

abstract

  • We present results of Monte Carlo simulations, using parallel tempering, on the three- and four-dimensional Edwards-Anderson Ising spin glass with Gaussian couplings at low temperatures with free boundary conditions. Our results suggest that the surface of large-scale low-energy excitations may be space filling. The data implies that the energy of these excitations increases with increasing system size for small systems, but we see evidence in three dimensions, where we have a greater range of sizes, for a crossover to a regime where the energy is independent of system size, in accordance with replica symmetry breaking.

author list (cited authors)

  • Katzgraber, H. G., & Young, A. P.

citation count

  • 20

publication date

  • May 2002