Thermodynamics of a Colloidal Particle in a Time-Dependent Non-Harmonic Potential

Details Thermodynamics of a Colloidal Particle in a Time-Dependent Non-Harmonic Potential Thermodynamics of a Colloidal Particle in a Time-Dependent Non-Harmonic Potential

2005-12-19

arxiv.org/abs/cond-mat/0512461v1

Phys. Rev. Lett., 96, 070603 (2006)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevLett.96.070603

We study the motion of an overdamped colloidal particle in a time-dependent non-harmonic potential. We demonstrate the first law-like balance between applied work, exchanged heat, and internal energy on the level of a single trajectory. The observed distribution of applied work is distinctly non-Gaussian in good agreement with numerical calculations. Both the Jarzynski relation and a detailed fluctuation theorem are verified with good accuracy.

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