arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.3444cond-mat.dis-nn
收藏

二维伊辛自旋玻璃中的混沌与普适性

Chaos and universality in two-dimensional Ising spin glasses

Creighton K. Thomas, David A. Huse, A. Alan Middleton

摘要:

最近扩展的精确数值方法和液滴缩放参数允许组装的二维伊辛自旋玻璃的玻璃态的相干图片。长度尺度熵变得重要,并产生“混乱”,极端敏感的状态温度,被发现取决于随机性的类型。对于$\pm J$模型,这个长度尺度决定了低温比热。虽然存在一种普适性,但某些临界指数确实依赖于无序的分布。

英文摘要:

Recently extended precise numerical methods and droplet scaling arguments allow for a coherent picture of the glassy states of two-dimensional Ising spin glasses to be assembled. The length scale at which entropy becomes important and produces "chaos", the extreme sensitivity of the state to temperature, is found to depend on the type of randomness. For the $\pm J$ model this length scale dominates the low-temperature specific heat. Although there is a type of universality, some critical exponents do depend on the distribution of disorder.

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。

↑