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Traditionally, it is understood that fluctuations in the equilibrium distribution are not evident in thermodynamic systems of large $N$ (the number of particles in the system) \cite{Huang1}. In this paper we examine the validity of this…

数学物理 · 物理学 2007-10-03 Kieran Kelly , Przemysław Repetowicz , Seosamh macRéamoinn

We study a one-dimensional classical system of $N$ particles confined within a harmonic trap. Interactions among these particles are dictated by a pairwise potential $V(x)$, where $x$ is the separation between two particles. Each particle…

统计力学 · 物理学 2024-07-01 Saikat Santra , Anupam Kundu

Entangled spin squeezed states generated via dipolar interactions in lattice models provide unique opportunities for quantum enhanced sensing and are now within reach of current experiments. A critical question in this context is which…

量子物理 · 物理学 2024-02-27 David Wellnitz , Mikhail Mamaev , Thomas Bilitewski , Ana Maria Rey

We investigate few-boson systems with resonant interactions in a narrow harmonic trap within an effective theory framework. The size of the model space is identified with the effective theory cutoff. In the universal regime, the…

量子气体 · 物理学 2013-06-05 S. Tölle , H. -W. Hammer , B. Ch. Metsch

One reports computational study revealing a set of general requirements, fulfilling of which would allow employing changes in ambient conditions to regulate accomplishing the collective outcome of emerging active network patterns in an…

软凝聚态物质 · 物理学 2007-05-23 Wlodzimierz Kozlowski

We present a computational investigation on the slow dynamics of a mixture of large and small soft spheres. By varying the size disparity at a moderate fixed composition different relaxation scenarios are observed for the small particles.…

软凝聚态物质 · 物理学 2007-05-23 Angel J. Moreno , Juan Colmenero

This paper deals with the problem of designing a distributed fault detection and isolation algorithm for nonlinear large-scale systems that are subjected to multiple fault modes. To solve this problem, a network of communicating detection…

系统与控制 · 计算机科学 2016-09-27 Elaheh Noursadeghi , Ioannis Raptis

We consider two (2D) and three (3D) dimensional granular systems exposed to compression, and ask what is the influence of the number of physical dimensions on the properties of the interaction networks that spontaneously form as these…

软凝聚态物质 · 物理学 2022-03-22 L. Kovalcinova , A. Taranto , L. Kondic

We address quantum characterization of anisotropic spin chains in the presence of antisymmetric exchange, and investigate whether the Hamiltonian parameters of the chain may be estimated with precision approaching the ultimate limit imposed…

量子物理 · 物理学 2025-02-18 Simone Cavazzoni , Marco Adani , Paolo Bordone , Matteo G. A. Paris

We examine a generalized KPP equation with a ``$q$-diffusion", which is a framework that unifies various standard linear diffusion regimes: Fickian diffusion ($q = 0$), Stratonovich diffusion ($q = 1/2$), Fokker-Planck diffusion ($q = 1$),…

偏微分方程分析 · 数学 2025-10-02 Nathanaël Boutillon , Yong-Jung Kim , Lionel Roques

We propose a scaling hypothesis for pattern-forming systems in which modulation of the order parameter results from the competition between a short-ranged interaction and a long-ranged interaction decaying with some power $\alpha$ of the…

软凝聚态物质 · 物理学 2011-01-17 O. Portmann , A. Goelzer , N. Saratz , O. V. Billoni , D. Pescia , A. Vindigni

Contact processes (CP's) with particle creation requiring a minimal neighborhood (restrictive or threshold CP's) present a novel sort of discontinuous absorbing transitions, that revealed itself robust under the inclusion of different…

统计力学 · 物理学 2016-03-30 Salete Pianegonda , C. E. Fiore

We study the propagation of pulled fronts in the $A <-> \leftrightarrow A+A$ microscopic reaction-diffusion process using Monte Carlo (MC) simulations. In the mean field approximation the process is described by the deterministic…

统计力学 · 物理学 2009-11-10 Esteban Moro

Colloidal mixtures represent a versatile model system to study transport in complex environments. They allow for a systematic variation of the control parameters, namely size ratio, total volume fraction and composition. We study the…

We investigate a two-dimensional problem of an isolated self-interacting end-grafted polymer, pulled by one end. In the thermodynamic limit, we find that the model has only two different phases, namely a collapsed phase and a stretched…

统计力学 · 物理学 2009-11-13 J. Krawczyk , I. Jensen , A. L. Owczarek , S. Kumar

Inverse Patchy Colloids (IPCs) differ from conventional patchy particles because their patches repel (rather than attract) each other and attract (rather than repel) the part of the colloidal surface that is free of patches. These…

软凝聚态物质 · 物理学 2014-12-12 Silvano Ferrari , Emanuela Bianchi , Yura V. Kalyuzhnyi , Gerhard Kahl

We study two two-level systems (TLSs) interacting with a reservoir of guided modes confined in a rectangular waveguide. For the energy separation of the identical TLSs far away from the cutoff frequencies of transverse modes, the…

量子物理 · 物理学 2020-09-29 Lijuan Hu , Guiyuan Lu , Jing Lu , Lan Zhou

We consider the problem of learning high-dimensional, nonparametric and structured (e.g. Gaussian) distributions in distributed networks, where each node in the network observes an independent sample from the underlying distribution and can…

信息论 · 计算机科学 2019-06-04 Leighton Pate Barnes , Yanjun Han , Ayfer Ozgur

Fluid-structure interaction models involve parameters that describe the solid and the fluid behavior. In simulations, there often is a need to vary these parameters to examine the behavior of a fluid-structure interaction model for…

数值分析 · 数学 2020-04-24 Roman Weinhandl , Peter Benner , Thomas Richter

When systems that can undergo phase separation between two coexisting phases in the bulk are confined in thin film geometry between parallel walls, the phase behavior can be profoundly modified. These phenomena shall be described and…

软凝聚态物质 · 物理学 2008-04-17 Kurt Binder , Juergen Horbach , Richard Vink , Andres De Virgiliis