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A new approach to the study of the ground-state properties of 2D Ising spin glass | | Zhi Fang Zhan
; Lik Wee Lee
; Jian-Sheng Wang
; | | Date: |
4 Apr 2000 | | Journal: | Physica A, 285 (2000) 239. | | Subject: | Statistical Mechanics | cond-mat.stat-mech | | Abstract: | 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. | | Source: | arXiv, cond-mat/0004028 | | Services: | Forum | Review | PDF | Favorites | |
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