VALLEY STRUCTURES IN THE PHASE-SPACE OF A FINITE 3D ISING SPIN-GLASS WITH PLUS-OR-MINUS-I INTERACTIONS

被引：48
|
作者：
KLOTZ, T
KOBE, S
机构：
[1] Inst. fur Theor. Phys., Tech. Univ. Dresden
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1994年 / 27卷 / 04期
关键词：
D O I：
10.1088/0305-4470/27/4/001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Exact results for ground states and low-lying excitations of short-range Ising spin glass systems in three dimensions are presented. Using an exact method of nonlinear discrete optimization 'valley structures' in the phase space can be analysed for finite systems. The existence of non-trivial breaking of ergodicity at zero temperature is shown by arranging the highly degenerate ground states in several valleys, which are connected only by the excited states.
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页码：L95 / L100
页数：6
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