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相关论文: Active Model B$^-$ from Mass-Conserving Reaction-D…

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We perform a comprehensive study on the role of thermal noise on the ordering kinetics of a collection of active Brownian particles modeled using coarse-grained conserved active model B (AMB). The ordering kinetics of the system is studied…

统计力学 · 物理学 2024-03-01 Shambhavi Dikshit , Sudipta Pattanayak , Shradha Mishra , Sanjay Puri

The Aharanov-Bohm (AB) effect, which predicts that a magnetic field strongly influences the wave function of an electrically charged particle, is investigated in a three site system in terms of the quantum control by an additional dephasing…

量子物理 · 物理学 2019-03-15 Georg Engelhardt , Jianshu Cao

We consider a reaction-diffusion process with retardation. The particles, immersed in traps initially, remain inactive until another particle is annihilated spontaneously with a rate $\lambda$ at a certain point $\vec x$. In that case the…

统计力学 · 物理学 2015-06-25 Michael Schulz , Steffen Trimper , Knud Zabrocki

Reversible reaction-diffusion systems display anomalous dynamics characterized by a power-law relaxation toward stationarity. In this paper we study in the aging regime the nonequilibrium dynamical properties of some model systems with…

统计力学 · 物理学 2009-11-13 Vlad Elgart , Michel Pleimling

We study the coupled two-species non-equilibrium reaction-controlled diffusion model introduced by Trimper et al. [Phys. Rev. E 62, 6071 (2000)] by means of detailed Monte Carlo simulations in one and two dimensions. Particles of type A may…

统计力学 · 物理学 2009-11-10 Beth A. Reid , Jason C. Brunson , Uwe C. Tauber

One of the fundamental eigenmodes of finite interacting systems is the mode of {\em uniform radial expansion and contraction} -- the ``breathing'' mode (BM). Here we show in a general way that this mode exists only under special conditions:…

等离子体物理 · 物理学 2009-11-13 C. Henning , K. Fujioka , P. Ludwig , A. Piel , A. Melzer , M. Bonitz

We study irreversible A-B reaction kinetics at a fixed interface separating two immiscible bulk phases, A and B. We consider general dynamical exponent $z$, where $x_t\sim t^{1/z}$ is the rms diffusion distance after time $t$. At short…

软凝聚态物质 · 物理学 2007-05-23 Ben O'Shaughnessy , Dimitrios Vavylonis

Within a Lagrangian formalism we derive the time-dependent Gutzwiller approximation for general multi-band Hubbard models. Our approach explicitly incorporates the coupling between time-dependent variational parameters and a time-dependent…

强关联电子 · 物理学 2015-06-15 J. Bünemann , M. Capone , J. Lorenzana , G. Seibold

The hindered diffusion model is introduced. It is a continuum model giving the dynamics of a conserved density. Similar to the spin-facilitated models, the kinetics are hindered by a fluctuating diffusion coefficient that decreases as the…

统计力学 · 物理学 2007-05-23 Gene F Mazenko

Robustness of spatial pattern against perturbations is an indispensable property of developmental processes for organisms, which need to adapt to changing environments. Although specific mechanisms for this robustness have been extensively…

适应与自组织系统 · 物理学 2017-04-05 Tetsuhiro S. Hatakeyama , Kunihiko Kaneko

The relationship between components of biochemical network and the resulting dynamics of the overall system is a key focus of computational biology. However, as these networks and resulting mathematical models are inherently complex and…

分子网络 · 定量生物学 2015-02-13 Simon West , Lloyd J. Bridge , Michael R. H. White , Pawel Paszek , Vadim N. Biktashev

Due to their remarkable properties, systems that exhibit self-organization of their components resulting from intrinsic microscopic activity have been extensively studied in the last two decades. In a generic class of active matter, the…

统计力学 · 物理学 2019-07-24 Ramin Golestanian

We introduce a model of three-species two-particle diffusion-limited reactions A+B -> A or B, B+C -> B or C, and C+A -> C or A, with three persistence parameters (survival probabilities in reaction) of the hopping particle. We consider…

统计力学 · 物理学 2010-09-22 Jae Woo Lee , Vladimir Privman

We analyze the dynamics of agent--based models (ABMs) from a Markovian perspective and derive explicit statements about the possibility of linking a microscopic agent model to the dynamical processes of macroscopic observables that are…

适应与自组织系统 · 物理学 2012-07-11 Sven Banisch , Ricardo Lima , Tanya Araújo

We present a systematic theory of chemically active emulsions in the hydrodynamic limit by constructing a thermodynamically consistent framework in which the equilibrium is broken by chemo-stating of fuel molecules. For ternary solutions…

软凝聚态物质 · 物理学 2026-04-21 Efe Ilker , Kathrin Laxhuber , Jean-Francois Joanny , Frank Jülicher

We study global-in-time behavior of the solution to a reaction-diffusion system with mass conservation, as proposed in the study of cell polarity, particularly, the second model of \cite{oi07}. First, we show global-in-time existence of…

偏微分方程分析 · 数学 2015-11-13 Evangelos Latos , Yoshihisa Morita , Takashi Suzuki

We present a self-consistent mean field theory of the dynamo in 3D and turbulent diffusion in 2D in weakly ionized gas. We find that in 3D, the backreaction does not alter the beta effect while it suppresses the alpha effect when the…

天体物理学 · 物理学 2011-02-11 Nicolas Leprovost , Eun-Jin Kim

The use of dissipation for the controlled creation of nontrivial quantum many-body correlated states is of much fundamental and practical interest. What is the result of imposing number conservation, which, in closed system, gives rise to…

统计力学 · 物理学 2023-05-30 P. A. Nosov , D. S. Shapiro , M. Goldstein , I. S. Burmistrov

We establish an existence result for weak solutions to an aggregation-diffusion-reaction equation with a constraint, arising in the modelling of multiple sclerosis. The model is derived from a general chemotaxis-type framework and describes…

偏微分方程分析 · 数学 2026-01-28 S. Fagioli , M. Kamath Katapady

Intracellular protein patterns govern essential cellular functions by dynamically redistributing proteins between membrane-bound and cytosolic states, conserving their total numbers. This review presents a theoretical framework for…

生物物理 · 物理学 2025-12-16 Erwin Frey , Henrik Weyer