Study of ± J Ising Spin Glasses via Multicanonical Ensemble
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 lattice size approximately as 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.
KeywordsSpin Glass High Energy Barrier Finite Size Scaling Groundstate Energy Order Parameter Distribution
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