IFIMAR   20926
INSTITUTO DE INVESTIGACIONES FISICAS DE MAR DEL PLATA
Unidad Ejecutora - UE
artículos
Título:
Fluctuation theorems from non-equilibrium Onsager--Machlup theory for a Brownian particle in a time-dependent harmonic potential
Autor/es:
R. R. DEZA, G. G. IZÚS Y H. S. WIO
Revista:
Central European Journal of Physics
Editorial:
Versita (distribuido por Springer-Verlag)
Referencias:
Lugar: Varsovia, Polonia; Año: 2009 vol. 7 p. 472 - 472
ISSN:
1895-1082
Resumen:
We discuss the case of a Brownian particle which is harmonically bound and multiplicatively forced---namely bound by $V(x,t)=\frac{1}{2}a(t)x^2$ where $a(t)$ is externally controlled---as another instance that provides a generalization of Onsager–Machlup’s theory to non-equilibrium states, thus allowing establishment of several fluctuation theorems. In particular, we outline the derivation of a fluctuation theorem for work, through the calculation of the work probability distribution as a functional integral over stochastic trajectories.
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