Search of stochastically gated targets with diffusive particles under resetting

نویسندگان

چکیده

The effects of Poissonian resetting at a constant rate $r$ on the reaction time between Brownian particle and stochastically gated target are studied. switches reactive state non-reactive one. We calculate mean which subject to hits for first time, while latter is in state. search minimum that depends transition rates. When relaxation much larger than both inverse diffusion system becomes equivalent partially absorbing boundary problem. In other cases, however, optimal can be non-monotonic function rates, feature not observed partial absorption. compute relative fluctuations hitting around its compare our results with ungated case. usual universal behavior these processes their optimum breaks down due internal dynamics.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Diffusive transport in the presence of stochastically gated absorption.

We analyze a population of Brownian particles moving in a spatially uniform environment with stochastically gated absorption. The state of the environment at time t is represented by a discrete stochastic variable k(t)∈{0,1} such that the rate of absorption is γ[1-k(t)], with γ a positive constant. The variable k(t) evolves according to a two-state Markov chain. We focus on how stochastic gatin...

متن کامل

Diffusion in Cells with Stochastically Gated Gap Junctions

We analyze a one-dimensional (1D) model of molecules diffusing along a line of N cells that are connected via stochastically gated gap junctions. Each gate switches between an open (n = 0) and a closed (n = 1) state according to a two-state Markov process, and the gates are treated as statistically independent. We proceed by spatially discretizing the stochastic diffusion equation using finite ...

متن کامل

Diffusion on a tree with stochastically gated nodes

We consider diffusion on a tree with nodes that randomly switch between allowing and prohibiting particles to pass. We find exact expressions for various splitting probabilities and mean first passage times for a single diffusing particle and show how the many parameters in the problem, such as the node gating statistics and tree topology, contribute to these exit statistics. We also consider a...

متن کامل

Scattering of light by stochastically rough particles.

The single particle phase function and the linear polarization for large stochastically deformed spheres have been calculated by Monte Carlo simulation using the geometrical optics approximation. The radius vector of a particle is assumed to obey a bivariate lognormal distribution with three free parameters: mean radius, its standard deviation and the coherence length of the autocorrelation f...

متن کامل

Stochastically gated local and occupation times of a Brownian particle.

We generalize the Feynman-Kac formula to analyze the local and occupation times of a Brownian particle moving in a stochastically gated one-dimensional domain. (i) The gated local time is defined as the amount of time spent by the particle in the neighborhood of a point in space where there is some target that only receives resources from (or detects) the particle when the gate is open; the tar...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Physics A

سال: 2021

ISSN: ['1751-8113', '1751-8121']

DOI: https://doi.org/10.1088/1751-8121/ac27e5