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Article: Computer simulation of Feynman's ratchet and pawl system

TitleComputer simulation of Feynman's ratchet and pawl system
Authors
KeywordsMolecular Dynamics
Issue Date2010
PublisherAmerican Physical Society. The Journal's web site is located at http://pre.aps.org
Citation
Physical Review E - Statistical, Nonlinear, And Soft Matter Physics, 2010, v. 81 n. 6 How to Cite?
AbstractIn this work, we introduce two models of Feynman's ratchet and pawl system. Molecular dynamics is carried out to simulate the two designs for Feynman's ratchet and pawl systems followed by a Langevin dynamics simulation of the reduced system. We find that the ratchet will rotate as designed when the temperature of the pawl chamber is lower than that of the ratchet chamber, which is consistent with the second law of thermodynamics. Different parameters and configurations are tested, and the results show that the efficiency of the ratchet depends on the applied torque. We find further that efficiencies of the Feynman's ratchet and pawl systems depend greatly on the details of the systems. © 2010 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/91191
ISSN
2014 Impact Factor: 2.288
2015 SCImago Journal Rankings: 0.999
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grants CouncilHKU 7012/04P
HKU 7127/05E
HKU 7011/06P
HKU 7013/07P
N_HKU 764/05
University of Hong Kong
Funding Information:

This work was supported by the Hong Kong Research Grants Council (Grants No. HKU 7012/04P, No. HKU 7127/05E, No. HKU 7011/06P, No. HKU 7013/07P, and No. N_HKU 764/05) and the Committee on Research and Conference Grants (CRCG) of University of Hong Kong.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorZheng, Jen_HK
dc.contributor.authorZheng, Xen_HK
dc.contributor.authorYam, Cen_HK
dc.contributor.authorChen, Gen_HK
dc.date.accessioned2010-09-17T10:14:34Z-
dc.date.available2010-09-17T10:14:34Z-
dc.date.issued2010en_HK
dc.identifier.citationPhysical Review E - Statistical, Nonlinear, And Soft Matter Physics, 2010, v. 81 n. 6en_HK
dc.identifier.issn1539-3755en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91191-
dc.description.abstractIn this work, we introduce two models of Feynman's ratchet and pawl system. Molecular dynamics is carried out to simulate the two designs for Feynman's ratchet and pawl systems followed by a Langevin dynamics simulation of the reduced system. We find that the ratchet will rotate as designed when the temperature of the pawl chamber is lower than that of the ratchet chamber, which is consistent with the second law of thermodynamics. Different parameters and configurations are tested, and the results show that the efficiency of the ratchet depends on the applied torque. We find further that efficiencies of the Feynman's ratchet and pawl systems depend greatly on the details of the systems. © 2010 The American Physical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://pre.aps.orgen_HK
dc.relation.ispartofPhysical Review E - Statistical, Nonlinear, and Soft Matter Physicsen_HK
dc.subjectMolecular Dynamicsen_HK
dc.titleComputer simulation of Feynman's ratchet and pawl systemen_HK
dc.typeArticleen_HK
dc.identifier.emailYam, C:yamcy@graduate.hku.hken_HK
dc.identifier.emailChen, G:ghc@yangtze.hku.hken_HK
dc.identifier.authorityYam, C=rp01399en_HK
dc.identifier.authorityChen, G=rp00671en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevE.81.061104en_HK
dc.identifier.scopuseid_2-s2.0-77953424992en_HK
dc.identifier.hkuros172185-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77953424992&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume81en_HK
dc.identifier.issue6en_HK
dc.identifier.eissn1550-2376-
dc.identifier.isiWOS:000278302600001-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectTheoretical Investigation and Computer Simulation of Carbon-Nanotube-Based Devices: Gigahertz Oscillators, Field Emitters and Tweezers-
dc.relation.projectFirst-principles simulation of dynamic responses of molecular and nanoscopic devices-
dc.relation.projectTheoretical investigation of carbon-nanotube-based nanoelectromechanical systems-
dc.relation.projectFundamental Study of Nanofluids in Nanochannels of Various Shapes-
dc.identifier.scopusauthoridZheng, J=16235471500en_HK
dc.identifier.scopusauthoridZheng, X=7404090981en_HK
dc.identifier.scopusauthoridYam, C=7004032400en_HK
dc.identifier.scopusauthoridChen, G=35253368600en_HK

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