Irreversibility to Reversibility Crossover in Transient Response of an Optically Trapped Particle

Details Irreversibility to Reversibility Crossover in Transient Response of an Optically Trapped Particle Irreversibility to Reversibility Crossover in Transient Response of an Optically Trapped Particle

2011-05-07

arxiv.org/abs/1105.1467v1

Eoruphys. Lett. 94 (2011) 60003

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 4 figures

Scientific paper

10.1209/0295-5075/94/60003

We study the transient response of a colloidal bead which is released from different heights and allowed to relax in the potential well of an optical trap. Depending on the initial potential energy, the system's time evolution shows dramatically different behaviors. Starting from the short-time reversible to long-time irreversible transition, a stationary reversible state with zero net dissipation can be achieved as the release point energy is decreased. If the system starts with even lower energy, it progressively extracts useful work from thermal noise and exhibits an anomalous irreversibility. In addition, we have verified the Transient Fluctuation Theorem and the Integrated Transient Fluctuation Theorem even for the non-ergodic descriptions of our system.

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