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arXiv 1101.5863cond-mat.dis-nncond-mat.stat-mech
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规则随机图上的随机场p-自旋玻璃模型

Random-field p-spin glass model on regular random graphs

Yoshiki Matsuda, Hidetoshi Nishimori, Lenka Zdeborová, Florent Krzakala

摘要:

我们详细研究了在具有固定连通度的随机图上有无随机场的p体+/-J伊辛模型的相图.我们最有趣的发现之一是,热力学自旋玻璃相是目前在三体纯铁磁模型在随机场,不同于典型的两体相互作用随机场伊辛模型。我们还讨论了顺磁和自旋玻璃相之间的相边界的位置,它不依赖于铁磁偏置的变化。这种行为是解释的规范变换,这表明规范不变的属性一般不依赖于铁磁偏置的强度为+/-J伊辛模型在规则的随机图。

英文摘要:

We investigate in detail the phase diagrams of the p-body +/-J Ising model with and without random fields on random graphs with fixed connectivity. One of our most interesting findings is that a thermodynamic spin glass phase is present in the three-body purely ferromagnetic model in random fields, unlike for the canonical two-body interaction random-field Ising model. We also discuss the location of the phase boundary between the paramagnetic and spin glass phases that does not depend on the change of the ferromagnetic bias. This behavior is explained by a gauge transformation, which shows that gauge-invariant properties generically do not depend on the strength of the ferromagnetic bias for the +/-J Ising model on regular random graphs.

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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