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An experimentally-achieved information-driven Brownian motor shows maximum power at the relaxation time

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dc.contributor.authorDong Yun Lee-
dc.contributor.authorJaegon Um-
dc.contributor.authorGovind Paneru-
dc.contributor.authorHyuk Kyu Pak-
dc.date.available2019-01-03T05:33:06Z-
dc.date.created2018-10-15-
dc.date.issued2018-08-
dc.identifier.issn2045-2322-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/5211-
dc.description.abstractWe present an experimental realization of an information-driven Brownian motor by periodically cooling a Brownian particle trapped in a harmonic potential connected to a single heat bath, where cooling is carried out by the information process consisting of measurement and feedback control. We show that the random motion of the particle is rectified by symmetry-broken feedback cooling where the particle is cooled only when it resides on the specific side of the potential center at the instant of measurement. Studying how the motor thermodynamics depends on cycle period tau relative to the relaxation time tau(B) of the Brownian particle, we find that the ratcheting of thermal noise produces the maximum work extraction when tau >= 5 tau(B) while the extracted power is maximum near tau= tau(B), implying the optimal operating time for the ratcheting process. In addition, we find that the average transport velocity is monotonically decreased as tau increases and present the upper bound for the velocity © The Author(s) 2018-
dc.description.uri1-
dc.language영어-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleAn experimentally-achieved information-driven Brownian motor shows maximum power at the relaxation time-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000441538200014-
dc.identifier.scopusid2-s2.0-85053406608-
dc.identifier.rimsid65424-
dc.contributor.affiliatedAuthorDong Yun Lee-
dc.contributor.affiliatedAuthorGovind Paneru-
dc.contributor.affiliatedAuthorHyuk Kyu Pak-
dc.identifier.doi10.1038/s41598-018-30495-6-
dc.identifier.bibliographicCitationSCIENTIFIC REPORTS, v.8, no.1, pp.12121-
dc.citation.titleSCIENTIFIC REPORTS-
dc.citation.volume8-
dc.citation.number1-
dc.citation.startPage12121-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusTRANSPORT-
dc.subject.keywordPlusRATCHET-
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > 1. Journal Papers (저널논문)
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