Fluctuation Theorem for the flashing ratchet model of molecular motors

Details Fluctuation Theorem for the flashing ratchet model of molecular motors Fluctuation Theorem for the flashing ratchet model of molecular motors

2009-07-09

arxiv.org/abs/0907.1570v1

Phys. Rev. E, 80, 021923 (2009)

Physics

Condensed Matter

Statistical Mechanics

5 pages, 4 figures

Scientific paper

Molecular motors convert chemical energy derived from the hydrolysis of ATP into mechanical energy. A well-studied model of a molecular motor is the flashing ratchet model. We show that this model exhibits a fluctuation relation known as the Gallavotti-Cohen symmetry. Our study highlights the fact that the symmetry is present only if the chemical and mechanical degrees of freedom are both included in the description.

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