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相关论文: Spin Glass Dynamics on Complex Hardware Topologies…

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We investigate numerically disorder chaos in spin glasses, i.e. the sensitivity of the ground state to small changes of the random couplings. Our study focuses on the Edwards-Anderson model in d=1,2,3 and in mean-field. We find that in all…

无序系统与神经网络 · 物理学 2007-05-23 Florent Krzakala , Jean-Philippe Bouchaud

A general matrix-based scheme for analyzing the long-time dynamics in kinetically constrained models such as the East model is presented. The treatment developed here is motivated by the expectation that slowly-relaxing spin domains of…

统计力学 · 物理学 2016-08-31 Ramses van Zon , Jeremy Schofield

These lecture notes can be read in two ways. The first two Sections contain a review of the phenomenology of several physical systems with slow nonequilibrium dynamics. In the Conclusions we summarize the scenario derived from the solution…

凝聚态物理 · 物理学 2007-05-23 Leticia F. Cugliandolo

We study thermally activated, low temperature equilibrium dynamics of elastic systems pinned by disorder using one loop functional renormalization group (FRG). Through a series of increasingly complete approximations, we investigate how the…

无序系统与神经网络 · 物理学 2009-11-10 Leon Balents , Pierre Le Doussal

Slow dynamics in disordered materials prohibits direct simulation of their rich nonequilibrium behavior at large scales. "Patchwork dynamics" is introduced to mimic relaxation over a very broad range of time scales by equilibrating or…

无序系统与神经网络 · 物理学 2009-06-30 Creighton K. Thomas , Olivia L. White , A. Alan Middleton

Marginal stability is the notion that stability is achieved, but only barely so. This property constrains the ensemble of configurations explored at low temperature in a variety of systems, including spin, electron and structural glasses. A…

统计力学 · 物理学 2016-04-12 Le Yan , Marco Baity-Jesi , M. Mueller , Matthieu Wyart

We study the chaotic nature of spin glasses against perturbations of the realization of the quenched disorder. This type of perturbation modifies the energy landscape of the system without adding extensive energy. We exactly solve the…

凝聚态物理 · 物理学 2016-08-31 Vicente Azcoiti , Eduardo Follana , Felix Ritort

We first review, following our earlier studies, the critical behavior of the quantum Sherrington-Kirkpatrick (SK) model at finite as well as at zero temperatures. Through the analysis of the Binder cumulant we determined the entire phase…

统计力学 · 物理学 2019-03-08 Sudip Mukherjee , Bikas K Chakrabarti

We study the properties of the q-state frustrated bond percolation model by a Monte Carlo "bond flip" dynamics, using an algorithm originally devised by Sweeny and suitably modified to treat the presence of frustration. We analyze the…

统计力学 · 物理学 2009-10-31 A. de Candia , V. Cataudella , A. Coniglio

We study the depinning transition of a driven chain-like system in the presence of frustration and quenched disorder. The analysis is motivated by recent transport experiments on artificial vortex-flow channels in superconducting thin…

超导电性 · 物理学 2009-11-07 T. Droese , R. Besseling , P. Kes , C. Morais Smith

We study the decoherence of a central spin-1/2 due to a closed environment composed of spin-1/2 particles. It is known that a frustrated spin environment, such as a spin glass, is much more efficient for decoherence of the central spin than…

量子物理 · 物理学 2012-05-25 Håkon Brox , Joakim Bergli , Yuri M. Galperin

Glass-like materials are nonequilibrium systems where the relaxation time may exceed reasonable time scales of observations. In the present paper a dynamic percolation model is introduced in order to explain the principal properties of…

凝聚态物理 · 物理学 2007-05-23 A. Vazquez , O. Sotolongo-Costa

A disordered system is denominated `annealed' when the interactions themselves may evolve and adjust their values to lower the free energy. The opposite (`quenched') situation when disorder is fixed, is the one relevant for physical…

无序系统与神经网络 · 物理学 2022-03-09 Laura Foini , Jorge Kurchan

Spin relaxation is investigated theoretically in two-dimensional systems. Various semiconductor structures of both n- and p-types are studied in detail. The most important spin relaxation mechanisms are considered. The spin relaxation times…

介观与纳米尺度物理 · 物理学 2009-11-07 N. S. Averkiev , L. E. Golub , M. Willander

It has been recently shown [E. Lerner, G. D\"uring, and E. Bouchbinder, Phys. Rev. Lett. 117, 035501 (2016)] that the non-phononic vibrational modes of structural glasses at low-frequencies $\omega$ are quasi-localized and follow a…

软凝聚态物质 · 物理学 2018-04-03 Edan Lerner , Eran Bouchbinder

We introduce a class of dissipative quantum spin models with local interactions and without quenched disorder that show glassy behaviour. These models are the quantum analogs of the classical facilitated spin models. Just like their…

统计力学 · 物理学 2012-07-31 Beatriz Olmos , Igor Lesanovsky , Juan P. Garrahan

Spin glass (SG) is a typical magnetic system with frozen random spin orientation at low temperatures. The system exhibits rich physical properties, such as infinite number of ground states, memory effect and aging phenomena. There are two…

无序系统与神经网络 · 物理学 2016-03-23 Tasrief Surungan , Bansawang BJ , Dahlang Tahir

A simple, non-disordered spin model has been studied in an effort to understand the origin of the precipitous slowing down of dynamics observed in supercooled liquids approaching the glass transition. A combination of Monte Carlo…

统计力学 · 物理学 2009-11-07 Hui Yin , Bulbul Chakraborty

The gauge theory of spin glasses and statistical-mechanical formulation of error-correcting codes are reviewed with an emphasis on their similarities. For the gauge theory, we explain the functional identities on dynamical autocorrelation…

无序系统与神经网络 · 物理学 2009-11-07 Hidetoshi Nishimori

We study the effect in geometrically frustrated antiferromagnets of weak, random variations in the strength of exchange interactions. Without disorder the simplest classical models for these systems have macroscopically degenerate ground…

无序系统与神经网络 · 物理学 2010-05-05 A. Andreanov , J. T. Chalker , T. E. Saunders , D. Sherrington