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arXiv 2408.17360cond-mat.dis-nn
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非互易自旋玻璃转变与老化

Nonreciprocal Spin-Glass Transition and Aging

Laboratoire Matière et Systèmes Complexes (MSC), Université Paris Cité, CNRS(复杂物质与系统实验室);Gulliver, ESPCI Paris, Université PSL, CNRS(古利弗实验室);James Franck Institute, University of Chicago(詹姆斯·弗兰克研究所);Department of Physics, University of Chicago(芝加哥大学物理系);Kadanoff Center for Theoretical Physics, University of Chicago(卡达诺夫理论物理中心)

Giulia Garcia Lorenzana, Ada Altieri, Giulio Biroli, Michel Fruchart, Vincenzo Vitelli

AI总结:

本文利用二分球面 Sherrington-Kirkpatrick 模型研究两个拮抗耦合自旋玻璃,发现非互易性可经由例外点诱导从静态无序相到振荡非晶相的转变,并产生非互易老化现象。

摘要:

无序系统通常表现出老化现象和玻璃转变。以往的研究长期认为非互易性倾向于破坏玻璃态行为。在此,我们通过一个二分球面 Sherrington-Kirkpatrick 模型证明情况并非总是如此,该模型描述了两个被建模为宏观自旋玻璃的相同复杂智能体之间的拮抗耦合。我们的动力学平均场理论计算揭示了一个由例外点介导的转变,从静态无序相转变到振荡非晶相,以及具有慢动力学和振荡的非互易老化。

英文摘要:

Disordered systems generically exhibit aging and a glass transition. Previous studies have long suggested that non-reciprocity tends to destroy glassiness. Here, we show that this is not always the case using a bipartite spherical Sherrington-Kirpatrick model that describes the antagonistic coupling between two identical complex agents modeled as macroscopic spin glasses. Our dynamical mean field theory calculations reveal an exceptional-point mediated transition from a static disorder phase to an oscillating amorphous phase as well as non-reciprocal aging with slow dynamics and oscillations.

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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