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Particles with nonlinear electric response: Suppressing van der Waals forces by an external field

hal.structure.identifierMax Planck Institute for Intelligent Systems [Tübingen]
hal.structure.identifier4th Institute for Theoretical Physics
dc.contributor.authorSOO, Heino
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorDEAN, David S.
hal.structure.identifierMax Planck Institute for Intelligent Systems [Tübingen]
hal.structure.identifier4th Institute for Theoretical Physics
dc.contributor.authorKRÜGER, Matthias
dc.date.created2016-10-28
dc.date.issued2017-01
dc.identifier.issn2470-0045
dc.description.abstractEnWe study the classical thermal component of Casimir, or van der Waals, forces between point particles with highly anharmonic dipole Hamiltonians when they are subjected to an external electric field. Using a model for which the individual dipole moments saturate in a strong field (a model that mimics the charges in a neutral, perfectly conducting sphere), we find that the resulting Casimir force depends strongly on the strength of the field, as demonstrated by analytical results. For a certain angle between external field and center to center axis, the fluctuation force can be tuned and suppressed to arbitrarily small values. We compare the forces between these anharmonic particles to those between harmonic ones, and also provide a simple formula for asymptotically large external fields, which we expect to be generally valid for the case of saturating dipole moments.
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.rights.urihttp://creativecommons.org/licenses/by-sa/
dc.title.enParticles with nonlinear electric response: Suppressing van der Waals forces by an external field
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevE.95.012151
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Mécanique statistique [cond-mat.stat-mech]
dc.identifier.arxiv1610.09192
bordeaux.journalPhysical Review E
bordeaux.page012151
bordeaux.volume95
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-01485251
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01485251v1
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