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A non-isothermal phase field model that captures both displacive and diffusive phase transformations in a unified framework is presented. The model is developed in a formal thermodynamic setting, which provides guidance on admissible…

材料科学 · 物理学 2011-12-02 Mirko Maraldi , Garth N. Wells , Luisa Molari

Strain-controlled criticality governs the elasticity of jamming and fiber networks. While the upper critical dimension of jamming is believed to be $d_u$=2, non mean-field exponents are observed in numerical studies of 2D and 3D fiber…

软凝聚态物质 · 物理学 2024-04-11 Sihan Chen , Tomer Markovich , Fred C. MacKintosh

We construct an explicitly solvable Landau mean-field theory for volume phase transitions of confined or fixed ions driven by relative concentrations of divalent and monovalent counterions. Such phase transitions have been widely studied in…

软凝聚态物质 · 物理学 2011-02-17 Kyle J. Welch , Fred Gittes

We consider the finite temperature metal-insulator transition in the half filled paramagnetic Hubbard model on the infinite dimensional Bethe lattice. A new method for calculating the Dynamical Mean Field Theory fixpoint surface in the…

强关联电子 · 物理学 2012-03-28 Hugo U. R. Strand , Andro Sabashvili , Mats Granath , Bo Hellsing , Stellan Östlund

This work deals with numerical simulation of water freezing and thawing in a complex three-dimensional geometry of a porous medium. The porous structure is represented by a virtual container filled with glass beads. Phase transition…

计算物理 · 物理学 2024-07-23 Pavel Strachota

We present an analysis of the classical contact process on scale-free networks. A mean-field study, both for finite and infinite network sizes, yields an absorbing-state phase transition at a finite critical value of the control parameter,…

统计力学 · 物理学 2009-11-11 Claudio Castellano , Romualdo Pastor-Satorras

The phase-field method has become in recent years the method of choice for simulating microstructural pattern formation during solidification. One of its main advantages is that time-dependent three-dimensional simulations become feasible.…

材料科学 · 物理学 2007-05-23 M. Dejmek , R. Folch , A. Parisi , M. Plapp

We introduce a mean-field term to an evolutionary spatial game model. Namely, we consider the game of Nowak and May, based on the Prisoner's dilemma, and augment the game rules by a self-consistent mean-field term. This way, an agent…

统计力学 · 物理学 2021-09-29 Dmitriy Antonov , Evgeni Burovski , Lev Shchur

We study a solution of interacting semiflexible polymers with curvature energy in poor-solvent conditions on the d-dimensional cubic lattice using mean-field theory and Monte Carlo computer simulations. Building upon past studies on a…

软凝聚态物质 · 物理学 2024-07-02 Davide Marcato , Achille Giacometti , Amos Maritan , Angelo Rosa

Important gaps remain in our understanding of the thermodynamics and statistical physics of self-gravitating systems. Using mean field theory, here we investigate the equilibrium properties of several spherically symmetric model systems…

统计力学 · 物理学 2009-10-31 Peter J. Klinko , Bruce N. Miller

A model of multicellular systems with several types of cells is developed from the phase field model. The model is presented as a set of partial differential equations of the field variables, each of which expresses the shape of one cell.…

生物物理 · 物理学 2015-05-30 Makiko Nonomura

A Mean-Field theory is presented and applied to a Cellular Automata model of distributed packet-switched networks. It is proved that, under a certain set of assumptions, the critical input traffic is inversely proportional to the free…

适应与自组织系统 · 物理学 2007-05-23 Maoke Chen , Tao He , Xing Li

We develop a full microscopic replica field theory of the dynamical transition in glasses. By studying the soft modes that appear at the dynamical temperature we obtain an effective theory for the critical fluctuations. This analysis leads…

无序系统与神经网络 · 物理学 2013-05-24 Silvio Franz , Hugo Jacquin , Giorgio Parisi , Pierfrancesco Urbani , Francesco Zamponi

This paper presents an introduction to phase transitions and critical phenomena on the one hand, and nonequilibrium patterns on the other, using the Ginzburg-Landau theory as a unified language. In the first part, mean-field theory is…

统计力学 · 物理学 2015-02-19 P. C. Hohenberg , A. P. Krekhov

Spontaneous liquid-liquid phase separation is commonly understood in terms of phenomenological mean-field theories. These theories correctly predict the structural features of the fluid at sufficiently long time scales and wavelengths.…

软凝聚态物质 · 物理学 2019-07-11 Charley Schaefer , Stefan Paquay , Tom C. B. McLeish

This paper investigates the use of transformers to approximate the mean-field dynamics of interacting particle systems exhibiting collective behavior. Such systems are fundamental in modeling phenomena across physics, biology, and…

计算物理 · 物理学 2025-05-29 Shiba Biswal , Karthik Elamvazhuthi , Rishi Sonthalia

We study the critical behavior of a general contagion model where nodes are either active (e.g. with opinion A, or functioning) or inactive (e.g. with opinion B, or damaged). The transitions between these two states are determined by (i)…

物理与社会 · 物理学 2017-02-24 Lucas Böttcher , Jan Nagler , Hans J. Herrmann

Nuclear matter at finite temperature and barion density exhibits several phase transitions that could happen at the early stages of the Universe evolution and could be realized in heavy-ion or hadron-hadron collisions. Microscopic…

高能物理 - 唯象学 · 物理学 2015-02-26 V. I. Yukalov , E. P. Yukalova

We develop a nanoscale dynamical mean-field theory (nano-DMFT) to deal with strong Coulomb interaction effects in physical systems that are intermediate in size between atoms and bulk materials, taking into account the tunneling into nearby…

强关联电子 · 物理学 2009-11-13 Serge Florens

We study D-branes on three-dimensional orbifold backgrounds that admit topologically distinct resolutions differing by flop transitions. We show that these distinct phases are part of the vacuum moduli space of the super Yang-Mills gauge…

高能物理 - 理论 · 物理学 2009-10-30 Brian R. Greene