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We study dynamics of filling of an initially empty finite medium by diffusing particles $A$ and $B$, which arise on the surface upon dissociation of $AB$ molecules, impinging on it with a fixed flux density $I$, and desorb from it by the…

统计力学 · 物理学 2007-05-23 Boris M. Shipilevsky

A one-dimensional reaction-diffusion model consisting of two species of particles and vacancies on a ring is introduced. The number of particles in one species is conserved while in the other species it can fluctuate because of creation and…

统计力学 · 物理学 2009-11-13 F H Jafarpour , B Ghavami

Liquid states theories have emerged as a numerically efficient alternative to costly molecular dynamics simulations of electron transfer reactions in solution. In a recent paper [Chem. Sci., 2019, 10, 2130], we introduced the framework to…

化学物理 · 物理学 2021-04-14 Tzu-Yao Hsu , Guillaume Jeanmairet

Tensor networks are employed to characterize the current fluctuations in one-dimensional diffusion-reaction systems. The representative system under study is a semiconducting material where holes and electrons constitute two types of charge…

统计力学 · 物理学 2025-12-16 Jiayin Gu

This paper introduces the combination of an advanced double-layer model with electrochemical kinetics to explain electrolyte effects on the alkaline hydrogen evolution reaction. It is known from experimental studies that the alkaline…

化学物理 · 物理学 2024-06-04 Lucas B. T. de Kam , Thomas L. Maier , Katharina Krischer

Computer simulations are used to investigate the response of a charged colloid and its surrounding microion cloud to an external electric field. Both static fields (DC) and alternating fields (AC) are considered. A mesoscopic simulation…

软凝聚态物质 · 物理学 2013-07-19 Jiajia Zhou , Roman Schmitz , Burkard Duenweg , Friederike Schmid

The effects of the Ohmic and magnetic density currents are investigated in the linearized Euler-Heisenberg electrodynamics. The linearization is introduced through an external magnetic field, in which the vector potential of the…

经典物理 · 物理学 2024-05-29 G. R. Santos , M. J. Neves

Reconnection physics at micro-scales is investigated in an electron magnetohydrodynamics frame. A new process of collapse of the neutral current sheet is demonstrated by means of analytical and numerical solutions. It shows how at scales…

等离子体物理 · 物理学 2017-12-01 I F Shaikhislamov

We extend our previous work (see arXiv:quant-ph/0501026), which compared the predictions of quantum electrodynamics concerning radiation reaction with those of the Abraham-Lorentz-Dirac theory for a charged particle in linear motion.…

量子物理 · 物理学 2016-09-08 Atsushi Higuchi , Giles D. R. Martin

We extend the energetic variational approach so it can be applied to a chemical reaction system with general mass action kinetics. Our approach starts with an energy-dissipation law. We show that the chemical equilibrium is determined by…

化学物理 · 物理学 2021-01-04 Yiwei Wang , Chun Liu , Pei Liu , Bob Eisenberg

As is well known in electrolyte theory, electrostatic fields are attenuated by the presence of mobile charges in the solution. This seems to limit the possibility of an electrostatic repulsion model of biological interactions such as cell…

生物物理 · 物理学 2012-01-04 Eshel Faraggi

Our main aim in this work is to study the effects of meson-exchange currents (MEC) over asymmetries and recoil polarization observables in A(e,e'p)B reactions. This DWIA+MEC model takes care of relativistic degrees of freedom by using…

核理论 · 物理学 2007-05-23 Fariba Kazemi Tabatabaei , J. E. Amaro , J. A. Caballero , M. B. Barbaro

For continuous-time Markov chains and open unimolecular chemical reaction networks, we prove that any two stationary currents are linearly related upon perturbations of a single edge's transition rates, arbitrarily far from equilibrium. We…

统计力学 · 物理学 2024-06-14 Pedro E. Harunari , Sara Dal Cengio , Vivien Lecomte , Matteo Polettini

We investigate the role of local heating and forces on ions in the stability of current-carrying aluminum wires. We find that heating increases with wire length due to a red shift of the frequency spectrum. Nevertheless, the local…

介观与纳米尺度物理 · 物理学 2009-11-10 Z. Yang , M. Chshiev , M. Zwolak , Y. -C. Chen , M. Di Ventra

This review discusses the dynamics of negative ion reactions with neutral molecules in the gas phase. Most anion-molecule reactions proceed via a qualitatively different interaction potential than cationic or neutral reactions. It has been…

化学物理 · 物理学 2010-06-22 Jochen Mikosch , Matthias Weidemüller , Roland Wester

We discuss the effect of an external electric field on the wetting of a solid surface by liquid. To this end, we use a model of the two-level-atom fluid for which the changes in interatomic interactions due to the presence of the field can…

软凝聚态物质 · 物理学 2017-02-20 Vasyl Myhal , Oleg Derzhko

Radiation reaction effects on ion acceleration in laser foil interaction are investigated via analytical modeling and multi-dimensional particle-in-cell simulations. We find the radiation effects are important in the area where some…

等离子体物理 · 物理学 2009-09-29 Min Chen , Alexander Pukhov , Tong-Pu Yu , Zheng-Ming Sheng

We consider in this article reaction-diffusion equations of the Fisher-KPP type with a nonlinearity depending on the space variable x, oscillating slowly and non-periodically. We are interested in the width of the interface between the…

偏微分方程分析 · 数学 2021-05-19 François Hamel , Grégoire Nadin

An electric field that builds in the direction against current, known as negative nonlocal resistance, arises naturally in viscous flows and is thus often taken as a telltale of this regime. Here we predict negative resistance for the…

介观与纳米尺度物理 · 物理学 2018-10-30 Andrey Shytov , Jian Feng Kong , Gregory Falkovich , Leonid Levitov

Phenomenological approach is developed in the theory of spin-valve type ferromagnetic junctions to describe exchange switching by current flowing perpendicular to interfaces. Forward and backward current switching effects are described and…

材料科学 · 物理学 2007-05-23 E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman