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相关论文: A replica-coupling approach to disordered pinning …

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In these proceedings, we first summarize some general properties of phase transitions in the presence of quenched disorder, with emphasis on the following points: the need to distinguish typical and averaged correlations, the possible…

无序系统与神经网络 · 物理学 2008-03-12 Cecile Monthus , Thomas Garel

A short quasi-monochromatic wave packet incident on a semi-infinite disordered medium gives rise to a reflected wave. The intensity of the latter decays as a power law $1/t^{\alpha}$ in the long-time limit. Using the one-dimensional…

无序系统与神经网络 · 物理学 2018-03-14 Sergey E. Skipetrov , Aritra Sinha

We prove disorder chaos at zero temperature for three types of diluted models with large connectivity parameter: $K$-spin antiferromagnetic Ising model for even $K\geq 2$, $K$-spin spin glass model for even $K\geq 2$, and random $K$-sat…

概率论 · 数学 2018-06-04 Wei-Kuo Chen , Dmitry Panchenko

A one-dimensional diagonal tight binding electronic system with correlated disorder is investigated. The correlation of the random potential is exponentially decaying with distance and its correlation length diverges as the concentration of…

无序系统与神经网络 · 物理学 2009-11-11 I Avgin

Systems of interacting random replicators are studied using generating functional techniques. While replica analyses of such models are limited to systems with symmetric couplings, dynamical approaches as presented here allow specifically…

无序系统与神经网络 · 物理学 2009-11-11 Tobias Galla

Population Annealing, one of the currently state-of-the-art algorithms for solving spin-glass systems, sometimes finds hard disorder instances for which its equilibration quality at each temperature step is severely damaged. In such cases…

For a very general class of probability distributions in disordered Ising spin systems, in the thermodynamical limit, we prove the following property for overlaps among real replicas. Consider the overlaps among s replicas. Add one replica…

无序系统与神经网络 · 物理学 2009-10-31 Stefano Ghirlanda , Francesco Guerra

The simultaneous effect of both disorder and crystal-lattice pinning on the equilibrium behavior of oriented elastic objects is studied using scaling arguments and a functional renormalization group technique. Our analysis applies to…

统计力学 · 物理学 2009-10-31 Thorsten Emig , Thomas Nattermann

In this paper, we investigate analytically the properties of the disordered Bernoulli model of planar matching. This model is characterized by a topological phase transition, yielding complete planar matching solutions only above a critical…

统计力学 · 物理学 2015-06-22 Andrey Y. Lokhov , Olga V. Valba , Sergei K. Nechaev , Mikhail V. Tamm

We study random pinning and copolymer models, when the return distribution of the underlying renewal process has a polynomial tail with finite mean. We compute the asymptotic behavior of the critical curves of the models in the weak…

We consider models of directed polymers interacting with a one-dimensional defect line on which random charges are placed. More abstractly, one starts from renewal sequence on $\Z$ and gives a random (site-dependent) reward or penalty to…

概率论 · 数学 2007-06-13 F. L. Toninelli

We consider a two-dimensional Ising model with random i.i.d. nearest-neighbor ferromagnetic couplings and no external magnetic field. We show that, if the probability of supercritical couplings is small enough, the system admits a…

无序系统与神经网络 · 物理学 2015-05-30 L. Bertini , Emilio N. M. Cirillo , E. Olivieri

We investigate a phenomenological model for the spin glass phase of La_{2-x}Sr_xCuO_4, in which it is assumed that holes doped into the CuO_2 planes localize near their Sr dopant, where they cause a dipolar frustration of the…

无序系统与神经网络 · 物理学 2009-11-10 N. Hasselmann , A. H. Castro Neto , C. Morais Smith

We introduce and initiate the study of a new model of reductions called the random noise model. In this model, the truth table $T_f$ of the function $f$ is corrupted on a randomly chosen $\delta$-fraction of instances. A randomized…

计算复杂性 · 计算机科学 2025-09-09 Tejas Nareddy , Abhishek Mishra

It has been widely believed that almost all states in one-dimensional (1d) disordered systems with short-range hopping and uncorrelated random potential are localized. Here, we consider the fate of these localized states by coupling between…

无序系统与神经网络 · 物理学 2024-03-19 Xiaoshui Lin , Ming Gong

Using a formalism based on the spectral decomposition of the replicated transfer matrix for disordered Ising models, we obtain several results that apply both to isolated one-dimensional systems and to locally tree-like graph and factor…

无序系统与神经网络 · 物理学 2014-08-04 Carlo Lucibello , Flaviano Morone , Tommaso Rizzo

We refine previous results concerning the Renewal Contact Processes. We significantly widen the family of distributions for the interarrival times for which the critical value can be shown to be strictly positive. The result now holds for…

The imposition of crystalline symmetries is known to lead to a rich variety of insulating and superconducting topological phases. These include higher-order topological phases and obstructed atomic limits with and without filling anomalies.…

介观与纳米尺度物理 · 物理学 2024-12-04 Adam Yanis Chaou , Mateo Moreno-Gonzalez , Alexander Altland , Piet W. Brouwer

We consider the interplay of disorder and interactions upon the gapless surface states of 3D topological superconductors. The combination of topology and superconducting order inverts the action of time-reversal symmetry, so that extrinsic…

无序系统与神经网络 · 物理学 2014-05-07 Matthew S. Foster , Hong-Yi Xie , Yang-Zhi Chou

We study numerically a disordered version of the model for DNA denaturation transition (DSAW-DNA) consisting of two interacting SAWs in 3d, which undergoes a first order transition in the homogeneous case. The two possible values eAT and…

软凝聚态物质 · 物理学 2009-11-11 Barbara Coluzzi