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arXiv 1603.00543cond-mat.dis-nn
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热边界条件揭示自旋玻璃中的键混沌

Bond chaos in spin glasses revealed through thermal boundary conditions

Wenlong Wang, Jonathan Machta, Helmut G. Katzgraber

摘要:

自旋玻璃具有相互竞争的相互作用,导致对小扰动非常敏感的粗糙能量景观。这些混沌效应强烈影响数值模拟,因此,获得更深入的了解自旋玻璃中的混沌是非常重要的。利用热边界条件是研究混沌现象的一种有效方法。在这里,我们推广的布居退火蒙特卡罗,结合热边界条件,研究由于小扰动的自旋-自旋耦合的三维爱德华-安德森伊辛自旋玻璃的键混沌。我们发现,债券和温度诱导的混沌共享相同的标度指数,债券混沌是比温度混沌强。

英文摘要:

Spin glasses have competing interactions that lead to a rough energy landscape which is highly susceptible to small perturbations. These chaotic effects strongly affect numerical simulations and, as such, gaining a deeper understanding of chaos in spin glasses is of much importance. The use of thermal boundary conditions is an effective approach to study chaotic phenomena. Here, we generalize population annealing Monte Carlo, combined with thermal boundary conditions, to study bond chaos due to small perturbations in the spin-spin couplings of the three-dimensional Edwards-Anderson Ising spin glass. We show that bond and temperature-induced chaos share the same scaling exponents and that bond chaos is stronger than temperature chaos.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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