Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/23221
PMID:
29376721
DOI:
10.1103/physrevlett.120.020601
Author(s):
Paneru, Govind; Lee, Dong Yun; Tlusty, Tsvi; Pak, Hyuk Kyu
Publisher(s):
American Physical Society (APS); AMER PHYSICAL SOC
Tags:
Physics and Astronomy
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article description
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.