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Nonequilibrium steady states in an open system connecting two reservoirs of platelike colloidal particles are investigated by means of a recently proposed phenomenological dynamic density functional theory [M. Bier and R. van Roij, Phys.…

软凝聚态物质 · 物理学 2011-09-14 Markus Bier , Rene van Roij

A two-lane exclusion process is studied where particles move in the two lanes in opposite directions and are able to change lanes. The focus is on the steady state behavior in situations where a positive current is constrained to an…

统计力学 · 物理学 2015-05-14 Róbert Juhász

We find that the statistics of levels undergoing metal-insulator transition in systems with multi-parametric Gaussian disorders and non-interacting electrons behaves in a way similar to that of the single parametric Brownian ensembles…

统计力学 · 物理学 2009-11-10 Pragya Shukla

We study the normal modes and the stability of two component condensates in a phase separated regime. In such a regime the system can undergo a quantum phase transition upon the change of interaction strength between bosons of the same…

统计力学 · 物理学 2009-11-07 Anatoly A. Svidzinsky , Siu-Tat Chui

Recent experiments have demonstrated that the timescale of adaptation of single neurons and ion channel populations to stimuli slows down as the length of stimulation increases; in fact, no upper bound on temporal time-scales seems to exist…

亚细胞过程 · 定量生物学 2010-04-29 Daniel Soudry , Ron Meir

Gene regulatory networks exhibit remarkable stability, maintaining functional phenotypes despite genetic and environmental perturbations. Discrete dynamical models, such as Boolean networks, provide systems biologists with a tractable…

分子网络 · 定量生物学 2025-11-25 Claus Kadelka

As a generic example of a voltage-driven superconducting structure we study a short superconductor connected to normal leads by means of low transparency tunnel junctions, with a voltage bias $V$ between the leads. The superconducting order…

超导电性 · 物理学 2013-02-25 I. Snyman , Yu. V. Nazarov

We consider the dynamics of a Bose-Einstein condensate with two internal states, coupled through a coherent drive. We focus on a specific quench protocol, in which the sign of the coupling field is suddenly changed. At a mean-field level,…

量子气体 · 物理学 2014-08-07 Nathan R. Bernier , Emanuele G. Dalla Torre , Eugene Demler

A simple model of wave-particle interaction is studied in its self-consistent form, that is, where the particles are allowed to feedback on the waves dynamics. We focus on the configurations of locked solutions (equilibria) and how the…

混沌动力学 · 物理学 2025-04-16 Matheus Jean Lazarotto , Iberê Luiz Caldas , Yves Elskens

We present a simple analytical tool which gives an approximate insight into the stationary behavior of nonlinear systems undergoing the influence of a weak and rapid noise from one dominating source, e.g. the kinetic equations describing a…

定量方法 · 定量生物学 2008-08-13 Anna Ochab-Marcinek

`Gating' is a widely observed phenomenon in biochemistry that describes the transition between the activated (or open) and deactivated (or closed) states of an ion-channel, which makes transport through that channel highly selective. In…

统计力学 · 物理学 2023-10-09 Arup Biswas , Arnab Pal , Debasish Mondal , Somrita Ray

The transport of molecules through biological and synthetic nanopores is governed by multiple stochastic processes that lead to noisy, fluctuating currents. Disentangling the characteristics of different noise-generating mechanisms is…

软凝聚态物质 · 物理学 2024-10-03 Stuart F. Knowles , Eleanor K. R. Mackay , Alice L. Thorneywork

We explore the effect of noise on the ballistic graphene-based small Josephson junctions in the framework of the resistively and capacitively shunted model. We use the non-sinusoidal current-phase relation specific for graphene layers…

介观与纳米尺度物理 · 物理学 2017-02-07 Claudio Guarcello , Davide Valenti , Bernardo Spagnolo , Vincenzo Pierro , Giovanni Filatrella

We find that the statistics of levels undergoing metal-insulator transition in systems with multi-parametric Gaussian disorders behaves in a way similar to that of the single parametric Brownian ensembles. The latter appear during aPoisson…

无序系统与神经网络 · 物理学 2009-09-29 Pragya Shukla

While most models of randomly connected networks assume nodes with simple dynamics, nodes in realistic highly connected networks, such as neurons in the brain, exhibit intrinsic dynamics over multiple timescales. We analyze how the…

无序系统与神经网络 · 物理学 2019-09-11 Samuel P. Muscinelli , Wulfram Gerstner , Tilo Schwalger

We discover a new class of Gaussian bound entangled states of four-mode continuous-variable systems. These states appear as a transient phase when certain NPT-entangled Gaussian states are evolved under a noisy environment. A thermal bath…

量子物理 · 物理学 2026-05-12 Gurvir Singh , Saptarshi Roy , Arvind

Network flows and specifically open canal flows can be modeled by systems of balance laws defined on topological graphs. The shallow water or Saint-Venant system of balance laws is one of the most used model and present two phases: fluvial…

数值分析 · 数学 2018-05-18 Maya Briani , Benedetto Piccoli

We investigate the outflux of ions through the channels in a cell membrane. The channels undergo an open/close cycle according to a periodic schedule. Our study is based both on theoretical considerations relying on homogenization theory,…

偏微分方程分析 · 数学 2014-11-21 D. Andreucci , D. Bellaveglia , E. N. M. Cirillo

A minimal model for gene expression, consisting of a switchable promoter together with the resulting messenger RNA, is equivalent to a Poisson channel with a binary Markovian input process. Determining its capacity is an optimization…

分子网络 · 定量生物学 2021-01-06 Mark Sinzger , Maximilian Gehri , Heinz Koeppl

In this work, we numerically study linear stability of multiple steady-state solutions to a type of steric Poisson--Nernst--Planck (PNP) equations with Dirichlet boundary conditions, which are applicable to ion channels. With numerically…

计算物理 · 物理学 2020-12-02 Jie Ding , Hui Sun , Shenggao Zhou