Single-file transport of binary hard-sphere mixtures through periodic potentials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10468476" target="_blank" >RIV/00216208:11320/23:10468476 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CJTsDGsckQ" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CJTsDGsckQ</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0164401" target="_blank" >10.1063/5.0164401</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Single-file transport of binary hard-sphere mixtures through periodic potentials

Popis výsledku v původním jazyce

Single-file transport occurs in various scientific fields, including diffusion through nanopores, nanofluidic devices, and cellular processes.We here investigate the impact of polydispersity on particle currents for single-file Brownian motion of hard spheres when they aredriven through periodic potentials by a constant drag force. Through theoretical analysis and extensive Brownian dynamics simulations,we unveil the behavior of particle currents for random binary mixtures. The particle currents show a recurring pattern in dependenceof the hard-sphere diameters and mixing ratio. We explain this recurrent behavior by showing that a basic unit cell exists in the spaceof the two hard-sphere diameters. Once the behavior of an observable inside the unit cell is determined, it can be inferred for any diameter. The overall variation of particle currents with the mixing ratio and hard-sphere diameters is reflected by their variation in thelimit where the system is fully covered by hard spheres. In this limit, the currents can be predicted analytically. Our analysis explainsthe occurrence of pronounced maxima and minima of the currents by changes in the effective potential barrier for the center-of-massmotion

Název v anglickém jazyce

Single-file transport of binary hard-sphere mixtures through periodic potentials

Popis výsledku anglicky

Single-file transport occurs in various scientific fields, including diffusion through nanopores, nanofluidic devices, and cellular processes.We here investigate the impact of polydispersity on particle currents for single-file Brownian motion of hard spheres when they aredriven through periodic potentials by a constant drag force. Through theoretical analysis and extensive Brownian dynamics simulations,we unveil the behavior of particle currents for random binary mixtures. The particle currents show a recurring pattern in dependenceof the hard-sphere diameters and mixing ratio. We explain this recurrent behavior by showing that a basic unit cell exists in the spaceof the two hard-sphere diameters. Once the behavior of an observable inside the unit cell is determined, it can be inferred for any diameter. The overall variation of particle currents with the mixing ratio and hard-sphere diameters is reflected by their variation in thelimit where the system is fully covered by hard spheres. In this limit, the currents can be predicted analytically. Our analysis explainsthe occurrence of pronounced maxima and minima of the currents by changes in the effective potential barrier for the center-of-massmotion

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/GC20-24748J" target="_blank" >GC20-24748J: Vztah kolektivní a jedno-částicové dynamiky v procesech single-file difúze v periodických strukturách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Chemical Physics

ISSN

0021-9606

e-ISSN

1089-7690

Svazek periodika

159

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

114114

Kód UT WoS článku

001074639700013

EID výsledku v databázi Scopus

2-s2.0-85171809693