Entropy Production in an Elementary, Light Driven Micro-Machine
Result description
We consider the basic, thermodynamic properties of an elementary micro-machine operating at colloidal length scales. In particular, we track and analyze the driven stochastic motion of a carefully designed micro-propeller rotating unevenly in an optical tweezers, in water. In this intermediate regime, the second law of macroscopic thermodynamics is satisfied only as an ensemble average, and individual trajectories can be temporarily associated with decreases in entropy. We show that our light driven micro-propeller satisfies an appropriate fluctuation theorem that constrains the probability with which these apparent violations of the second law occur. Implications for the development of more complex micro-machines are discussed.
Keywords
non-equilibrium thermodynamicsBrownian motionmicro-machinesfluctuationsfluctuations
The result's identifiers
Result code in IS VaVaI
Result on the web
https://www.frontiersin.org/articles/10.3389/fphy.2020.593122/full
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Entropy Production in an Elementary, Light Driven Micro-Machine
Original language description
We consider the basic, thermodynamic properties of an elementary micro-machine operating at colloidal length scales. In particular, we track and analyze the driven stochastic motion of a carefully designed micro-propeller rotating unevenly in an optical tweezers, in water. In this intermediate regime, the second law of macroscopic thermodynamics is satisfied only as an ensemble average, and individual trajectories can be temporarily associated with decreases in entropy. We show that our light driven micro-propeller satisfies an appropriate fluctuation theorem that constrains the probability with which these apparent violations of the second law occur. Implications for the development of more complex micro-machines are discussed.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers in Physics
ISSN
2296-424X
e-ISSN
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Volume of the periodical
—
Issue of the periodical within the volume
NOV
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
593122
UT code for WoS article
000598127300001
EID of the result in the Scopus database
2-s2.0-85097682581
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Optics (including laser optics and quantum optics)
Year of implementation
2020