arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1003.3510cond-mat.dis-nn
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自旋玻璃的两种模型--伊辛与海森堡

Two models of spin glasses -- Ising versus Heisenberg

Hikaru Kawamura

摘要:

简要回顾了近年来自旋玻璃两种典型模型--三维伊辛自旋玻璃模型和三维海森堡自旋玻璃模型的有序化数值研究。特别注意的问题是,是否有一个热力学过渡在零场,什么是相关的临界性质,什么是有序状态的性质,特别是一个可能的复本对称性破缺,以及是否有一个热力学过渡在应用领域。对比了两种模型的性质,并讨论了可能与实验的关系。

英文摘要:

Brief review is given on recent numerical research of the ordering of two typical models of spin glasses (SGs), the three-dimensional (3D) Ising SG and the 3D Heisenberg SG models. Particular attention is paid to the questions of whether there is a thermodynamic transition in zero field, what are the associated critical properties, what is the nature of the ordered state, particularly of a possible replica-symmetry breaking, and whether there is a thermodynamic transition in applied fields. The properties of the two models are contrasted, and possible relation to experiments is discussed.

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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