| Issue |
EPL
Volume 94, Number 6, June 2011
|
|
|---|---|---|
| Article Number | 60003 | |
| Number of page(s) | 6 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/94/60003 | |
| Published online | 09 June 2011 | |
Irreversibility-to-reversibility crossover in transient response of an optically trapped particle
Department of Physics, Indian Institute of Science - Bangalore - 560012, India
a
manas@physics.iisc.ernet.in
b
asood@physics.iisc.ernet.in
Received:
20
November
2010
Accepted:
6
May
2011
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.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 42.50.Wk – Mechanical effects of light on material media, microstructures and particles
© EPLA, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.