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arXiv 2204.13612cond-mat.stat-mechcond-mat.str-el
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三维钟模型的表面临界性质

Surface critical properties of the three-dimensional clock model

Xuan Zou, Shuo Liu, Wenan Guo

摘要:

使用蒙特卡罗模拟和有限尺寸标度分析,我们表明,$q$ -状态时钟模型与$q=6$在简单的立方晶格与开放的表面具有丰富的相图,特别是,它有一个非凡的日志阶段,除了普通和非凡的转变在散装临界点。我们用数值方法证明了中间异常对数相的存在是由于在体临界点处表面耦合增加时,在表面进入$Z_{q}$破缺区之前,表面态出现O(2)对称性,而体态出现O(2)对称性.得到了特殊对数跃迁的临界行为,以及分隔普通和特殊对数跃迁的普通跃迁和特殊跃迁。

英文摘要:

Using Monte Carlo simulations and finite-size scaling analysis, we show that the $q$-state clock model with $q=6$ on the simple cubic lattice with open surfaces has a rich phase diagram; in particular, it has an extraordinary-log phase, besides the ordinary and extraordinary transitions at the bulk critical point. We prove numerically that the presence of the intermediate extraordinary-log phase is due to the emergence of an O(2) symmetry in the surface state before the surface enters the $Z_{q}$ symmetry-breaking region as the surface coupling is increased at the bulk critical point, while O(2) symmetry emerges for the bulk. The critical behaviors of the extraordinary-log transition, as well as the ordinary and the special transition separating the ordinary and the extraordinary-log transition are obtained.

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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