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相关论文: Memory-Controlled Annihilation Reactions

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We introduce a homogenization approach to characterize the dynamical response of a generic dispersive spacetime crystal in the long-wavelength limit. The theory is applied to dispersive spacetime platforms with a travelling-wave modulation.…

光学 · 物理学 2023-07-26 João C. Serra , Mário G. Silveirinha

Steric or attractive interactions among reactants or between reactants and inert crowders can substantially influence the total rate of a diffusion-influenced reaction in the liquid phase. However, the role of the product species, that has…

化学物理 · 物理学 2018-04-19 Rafael Roa , Toni Siegl , Won Kyu Kim , Joachim Dzubiella

We study diffusion-reaction processes on periodic square planar lattices and simple cubic (sc) lattices. Considered first is a single diffusing reactant undergoing an irreversible reaction upon first encounter with a stationary co-reactant…

统计力学 · 物理学 2018-08-22 E. Abad , T. Abil , A. Santos , J. J. Kozak

A dilutely filled $N$-site optical lattice near zero temperature within a high-$Q$ multimode cavity can be mapped to a spin ensemble with tailorable interactions at all length scales. The effective full site to site interaction matrix can…

量子物理 · 物理学 2017-03-15 Valentin Torggler , Sebastian Krämer , Helmut Ritsch

Chaotic quantum systems at finite energy density are expected to act as their own heat baths, rapidly dephasing local quantum superpositions. We argue that in fact this dephasing is subexponential for chaotic dynamics with conservation laws…

The single-species annihilation reaction A+A->0 is studied in the presence of random advecting field. In order to determine possible infrared behavior of the system all stable fixed points are presented to two-loop approximation in double…

混沌动力学 · 物理学 2015-12-18 Michal Hnatič , Juha Honkonen , Tomáš Lučivjanský

A one dimensional stochastic exclusion process with two species of particles, $+$ and $-$, is studied where density of each species can fluctuate but the total particle density is conserved. From the exact stationary state weights we show…

统计力学 · 物理学 2017-01-10 Urna Basu

Based on a recent work on traveling waves in spatially nonlocal reaction-diffusion equations, we investigate the existence of traveling fronts in reaction-diffusion equations with a memory term. We will explain how such memory terms can…

偏微分方程分析 · 数学 2021-04-27 Alexander Mielke , Sina Reichelt

The extinction time of an isolated population can be exponentially reduced by a periodic modulation of its environment. We investigate this effect using, as an example, a stochastic branching-annihilation process with a time-dependent…

统计力学 · 物理学 2014-08-06 Michael Assaf , Alex Kamenev , Baruch Meerson

When the unconditioned process is a diffusion submitted to a space-dependent killing rate $k(\vec x)$, various conditioning constraints can be imposed for a finite time horizon $T$. We first analyze the conditioned process when one imposes…

统计力学 · 物理学 2022-09-01 Alain Mazzolo , Cécile Monthus

We propose the deterministic rate equation of three-species in the reaction - diffusion system. For this case, our purpose is to carry out the decay process in our three-species reaction-diffusion model of the form $A+B+C\to D$. The…

统计力学 · 物理学 2009-10-31 Kyungsik Kim , K. H. Chang , Y. S. Kong

We study the one-dimensional Fermi gas subject to dissipative reactions. The dynamics is governed by the quantum master equation, where the Hamiltonian describes coherent motion of the particles, while dissipation accounts for irreversible…

统计力学 · 物理学 2026-04-06 Hannah Lehr , Igor Lesanovsky , Gabriele Perfetto

We are interested in studying the stationary solutions and phase transitions of aggregation equations with degenerate diffusion of porous medium-type, with exponent $1 < m < \infty$. We first prove the existence of possibly infinitely many…

偏微分方程分析 · 数学 2020-07-13 José A. Carrillo , Rishabh S. Gvalani

Reaction-diffusion equations describe various spatially extended processes that unfold as traveling fronts moving at constant velocity. We introduce and solve analytically a model that, besides such fronts, supports solutions advancing as…

生物物理 · 物理学 2026-02-13 Louis Brezin , Kyle J. Shaffer , Kirill S. Korolev

Spontaneous decay of an excited atom in a waveguide is essentially modified by the spatial structure of vacuum reservoir. This is particularly exciting in view of a range of applications for quantum information science. We found out that…

量子物理 · 物理学 2020-05-27 A. S. Kuraptsev , I. M. Sokolov

Memory effects are ubiquitous in nature and are particularly relevant at the nanoscale where the dynamical properties of electrons and ions strongly depend on the history of the system, at least within certain time scales. We review here…

介观与纳米尺度物理 · 物理学 2011-03-02 Yuriy V. Pershin , Massimiliano Di Ventra

We study the response of one dimensional diffusive systems, consisting of particles interacting via symmetric or asymmetric exclusion, to time-periodic driving from two reservoirs coupled to the ends. The dynamical response of the system…

统计力学 · 物理学 2011-03-23 Urna Basu , Debasish Chaudhuri , P. K. Mohanty

In this paper, we study unique, globally defined uniformly bounded weak solutions for a class of semilinear reaction-diffusion-advection systems. The coefficients of the differential operators and the initial data are only required to be…

偏微分方程分析 · 数学 2021-09-10 William E Fitzgibbon , Jeff Morgan , Bao Quoc Tang , Hong-Ming Yin

The present work is a continuation of our previous paper [Condens. Matter Phys., 2020, 23, 33602: 1-17]. It is devoted to the modelling of the interplay of equilibrium and non-equilibrium phase transitions. The modelling of equilibrium…

材料科学 · 物理学 2025-04-01 P. O. Mchedlov-Petrosyan , L. N. Davydov

We show that the chemical reactions of the model systems of A+A->0 and A+B->0 when performed on scale-free networks exhibit drastically different behavior as compared to the same reactions in normal spaces. The exponents characterizing the…

无序系统与神经网络 · 物理学 2009-11-10 Lazaros K. Gallos , Panos Argyrakis