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 heat and entropy are evaluated at all temperatures. We studied their finite-size scaling, as well as the zero-temperature limit to explore the ground-state properties. Our estimate of the ground-state entropy per spin is s 0 = 0.046 ÷ 0.002.

arXiv:cond-mat/9210005Europhysics Letters (EPL)Apr 1, 199338 citations

Springer proceedings in physics

Study of ± J Ising Spin Glasses via Multicanonical Ensemble

T. Çelik, Ulrich H. E. Hansmann, Bernd A. Berg

Published Jan 1, 1993• 1 citation

Publisher

DOI: 10.1007/978-3-642-78448-4_20

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V^3

. The energy, entropy and other physical quantities are easily calculable at all temperatures from a single simulation. Their finite size scalings and the zero temperature limits are also explored.