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arXiv 1602.00657math.PRmath-phmath.MP
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球平均场自旋玻璃的低温渐近性

Low Temperature Asymptotics in Spherical Mean Field Spin Glasses

Aukosh Jagannath, Ian Tobasco

摘要:

本文研究了球面Crisanti-Sommers变分问题的低温极限。我们确定了$Γ$ -极限的Crisanti-Sommers泛函,从而建立了一个严格的变分问题的基态能量的球形混合$p$ -自旋玻璃。作为应用,我们计算了相应极小值在低温极限下的适度偏差。特别是,对于一个大类的模型,这会产生中度偏差的重叠分布。然后我们分析了基态能量问题。我们证明了这个变分问题是一个障碍型问题的对偶。这种二元性是我们分析的核心。我们提出了原问题和对偶问题的最优解的正则性理论。这最终在一个简单的方法来构建一个有限维的空间,这些优化生活的任何模型。作为这些结果的结果,我们统一的独立预测的Crisanti-Leuzzi和Auffinger-本Arous关于1 RSB阶段在此限制。我们发现,“积极的复制子特征值”和“纯”的条件是必要的最优性,但既不是自己足够的,回答一个问题的Auffinger和本Arous的负面。最后,我们证明了这些条件完全表征$2+p$自旋模型的1 RSB阶段。

英文摘要:

In this paper, we study the low temperature limit of the spherical Crisanti-Sommers variational problem. We identify the $Γ$-limit of the Crisanti-Sommers functionals, thereby establishing a rigorous variational problem for the ground state energy of spherical mixed $p$-spin glasses. As an application, we compute moderate deviations of the corresponding minimizers in the low temperature limit. In particular, for a large class of models this yields moderate deviations for the overlap distribution. We then analyze the ground state energy problem. We show that this variational problem is dual to an obstacle-type problem. This duality is at the heart of our analysis. We present the regularity theory of the optimizers of the primal and dual problems. This culminates in a simple method for constructing a finite dimensional space in which these optimizers live for any model. As a consequence of these results, we unify independent predictions of Crisanti-Leuzzi and Auffinger-Ben Arous regarding the 1RSB phase in this limit. We find that the "positive replicon eigenvalue" and "pure-like" conditions are together necessary for optimality, but that neither are themselves sufficient, answering a question of Auffinger and Ben Arous in the negative. We end by proving that these conditions completely characterize the 1RSB phase in $2+p$-spin models.

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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