0 A new approach to the study of the ground - state properties of 2 D Ising spin glass
نویسندگان
چکیده
A new approach known as flat histogram method is used to study the ±J Ising spin glass in two dimensions. Temperature dependence of the energy, the entropy, and other physical quantities can be easily calculated and we give the results for the zero-temperature limit. For the ground-state energy and entropy of an infinite system size, we estimate e0 = −1.4007± 0.0085 and s0 = 0.0709± 0.006, respectively. Both of them agree well with previous calculations. The time to find the ground-states as well as the tunneling times of the algorithm are also reported and compared with other methods.
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تاریخ انتشار 2008