Molecular motor efficiency is maximized in the presence of both power-stroke and rectification

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dc.contributor.authorSchmitt, R. K.
dc.contributor.authorRodríguez Parrondo, Juan Manuel
dc.contributor.authorLinke, H.
dc.contributor.authorJohansson, J.
dc.date.accessioned2023-06-18T06:47:20Z
dc.date.available2023-06-18T06:47:20Z
dc.date.issued2015-06-15
dc.description©2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. The research leading to these results has received funding from the European Union Seventh Framework program (FP7/2007-2013) under grant agreement nr 308850 (project acronym INFERNOS) and by the Swedish Research Council. J M R P gratefully acknowledges the Pufendorf Institute at Lund university for its hospitality at the beginning of this project and financial support from the Spanish MINECO Grant ENFASIS (FIS2011-22644).
dc.description.abstractWe present a model for a feedback-controlled ratchet consisting of a Brownian particle and a moving, finite barrier that is shifted by an external agent depending on the position of the particle. By modifying the value of a single parameter of the feedback protocol, the model can act either as a pure rectifier, a power-stroke (PS) motor, or a combination of both. Interestingly, in certain situations the motor reaches a maximum efficiency for an intermediate value of that parameter, i.e., for a combination of the information ratchet and the PS mechanisms. We relate our results to the biological motors kinesin, myosin II, and myosin V, finding that these motors operate in a regime of length scales and forces where the efficiency is maximized for a combination of rectification and PS mechanisms.
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea. FP7
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO)
dc.description.sponsorshipSwedish Research Council
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/33364
dc.identifier.doi10.1088/1367-2630/17/6/065011
dc.identifier.issn1367-2630
dc.identifier.officialurlhttp://dx.doi.org/10.1088/1367-2630/17/6/065011
dc.identifier.relatedurlhttp://iopscience.iop.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/24182
dc.journal.titleNew Journal of Physics
dc.language.isoeng
dc.publisherIOP Publishing
dc.relation.projectIDINFERNOS (308850)
dc.relation.projectIDENFASIS (FIS2011-226449
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu539.1
dc.subject.keyword2nd Law
dc.subject.keywordMaxwells demon
dc.subject.keywordJarzynski equality
dc.subject.keywordMutual information
dc.subject.keywordSymmetry-breaking
dc.subject.keywordEquilibrium
dc.subject.keywordEnergetics
dc.subject.keywordPrinciple
dc.subject.keywordFeedback
dc.subject.keywordEntropy.
dc.subject.ucmFísica nuclear
dc.subject.unesco2207 Física Atómica y Nuclear
dc.titleMolecular motor efficiency is maximized in the presence of both power-stroke and rectification
dc.typejournal article
dc.volume.number17
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