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Pak, Hyuk Kyu
Soft Condensed Matter Physics Lab (SCMP)
Research Interests
  • Soft matter, liquids, fluctuations, interfacial energy, energy harvesting, optical tweezers

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Lossless Brownian Information Engine

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Title
Lossless Brownian Information Engine
Author
Paneru, GovindLee, Dong YunTlusty, TsviPak, Hyuk Kyu
Issue Date
201801
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.120, no.2, pp.020601 -
Abstract
We report on a lossless information engine that converts nearly all available information from an error-free feedback protocol into mechanical work. Combining high-precision detection at a resolution of 1 nm with ultrafast feedback control, the engine is tuned to extract the maximum work from information on the position of a Brownian particle. We show that the work produced by the engine achieves a bound set by a generalized second law of thermodynamics, demonstrating for the first time the sharpness of this bound. We validate a generalized Jarzynski equality for error-free feedback-controlled information engines.
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DOI
http://dx.doi.org/10.1103/PhysRevLett.120.020601
ISSN
0031-9007
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