Fluctuation theorem and large deviation function for a solvable model of a molecular motor.
Phys Rev E Stat Nonlin Soft Matter Phys
; 78(1 Pt 1): 011915, 2008 Jul.
Article
em En
| MEDLINE
| ID: mdl-18763990
ABSTRACT
We study a discrete stochastic model of a molecular motor. This discrete model can be viewed as a minimal ratchet model. We extend our previous work on this model, by further investigating the constraints imposed by the fluctuation theorem on the operation of a molecular motor far from equilibrium. In this work, we show the connections between different formulations of the fluctuation theorem. One formulation concerns the generating function of the currents while another one concerns the corresponding large deviation function, which we have calculated exactly for this model. A third formulation concerns the ratio of the probability of observing a velocity v to the same probability of observing a velocity -v . Finally, we show that all the formulations of the fluctuation theorem can be understood from the notion of entropy production.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Solventes
/
Proteínas Motores Moleculares
Tipo de estudo:
Risk_factors_studies
Idioma:
En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Assunto da revista:
BIOFISICA
/
FISIOLOGIA
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
França