Dynamics and energetics for a molecular zipper model under external driving

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10129691" target="_blank" >RIV/00216208:11320/12:10129691 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1742-5468/2012/11/P11009" target="_blank" >http://dx.doi.org/10.1088/1742-5468/2012/11/P11009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-5468/2012/11/P11009" target="_blank" >10.1088/1742-5468/2012/11/P11009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamics and energetics for a molecular zipper model under external driving

Popis výsledku v původním jazyce

We investigate the dynamics of a single-ended N-state molecular zipper based on a model originally proposed by Kittel. The molecule is driven unidirectionally towards the completely unzipped state with increasing time t. The driving lowers the energies of states with k unzipped links by an amount proportional to kt. We solve the Pauli rate equation for the state probabilities and the partial differential equations, which yield the probability distributions for the work performed on the zipper and for the heat exchanged with the thermal reservoir. Similarly to the related equilibrium model, two different regimes can be identified at a given temperature with respect to the released molecular degrees of freedom per broken bond. In these two regimes the time evolution of the state probabilities as well as of the work and heat distributions shows a qualitatively different behavior.

Název v anglickém jazyce

Dynamics and energetics for a molecular zipper model under external driving

Popis výsledku anglicky

We investigate the dynamics of a single-ended N-state molecular zipper based on a model originally proposed by Kittel. The molecule is driven unidirectionally towards the completely unzipped state with increasing time t. The driving lowers the energies of states with k unzipped links by an amount proportional to kt. We solve the Pauli rate equation for the state probabilities and the partial differential equations, which yield the probability distributions for the work performed on the zipper and for the heat exchanged with the thermal reservoir. Similarly to the related equilibrium model, two different regimes can be identified at a given temperature with respect to the released molecular degrees of freedom per broken bond. In these two regimes the time evolution of the state probabilities as well as of the work and heat distributions shows a qualitatively different behavior.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of Statistical Mechanics: Theory and Experiment

ISSN

1742-5468

e-ISSN

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Svazek periodika

neuveden

Číslo periodika v rámci svazku

november

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

1-17

Kód UT WoS článku

000312102500017

EID výsledku v databázi Scopus

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