Irreversibility-to-reversibility crossover in transient response of an optically trapped particle

Khan, Manas and Sood, AK (2011) Irreversibility-to-reversibility crossover in transient response of an optically trapped particle. In: EPL: Europhysics Letters, 94 (6).

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Abstract

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. Copyright (C) EPLA, 2011

Item Type:	Journal Article
Publication:	EPL: Europhysics Letters
Publisher:	EDP Sciences
Additional Information:	Copyright of this article belongs to EDP Sciences.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	29 Jun 2011 09:11
Last Modified:	29 Jun 2011 09:11
URI:	http://eprints.iisc.ac.in/id/eprint/38634

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