8 papers
Grundstate Properties of the 3D Ising Spin Glass
Bernd A. Berg, Ulrich H. E. Hansmann, Tarik Celik
We study zero--temperature properties of the 3d Edwards--Anderson Ising spin glass on finite lattices up to size . Using multicanonical sampling we generate large numbers of…
A Determination of Interface Free Energies
A. Billoire, T. Neuhaus, B. Berg
We determine the interface free energy between disordered and ordered phases in the q=10 and q=20 2-d Potts models using the results of multicanonical Monte Carlo simula…
Study of +/-J Ising Spin Glasses via Multicanonical Ensemble
Tarik Celik, Ulrich H. E. Hansmann, Bernd Berg
We performed numerical simulations of 2D and 3D Edwards-Anderson spin glass models by using the recently developed multicanonical ensemble. Our ergodicity times increase with the l…
Observation of FSS for a First Order Phase Transition
A. Billoire, T. Neuhaus, B. Berg
We present the results of a multicanonical simulation of the q=20 2-d Potts model in the transition region. This is a very strong first order phase transition. We observe, for the…
Multicanonical Study of the 3D Ising Spin Glass
B. A. Berg, T. Celik, U. Hansmann
We simulated the Edwards-Anderson Ising spin glass model in three dimensions via the recently proposed multicanonical ensemble. Physical quantities such as energy density, specific…
Recent Results of Multimagnetical Simulations of the Ising Model
U. Hansmann, B. A. Berg, T. Neuhaus
To investigate order-order interfaces, we perform multimagnetical Monte Carlo simulations of the and Ising model. Stringent tests of the numerical methods are performed b…