Dynamical chiral symmetry breaking in sliding nanotubes

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dc.creatorZhang, X. H.
dc.creatorSantoro, G. E.
dc.creatorTartaglino, U.
dc.creatorTosatti, E.
dc.date2009-03-09
dc.date.accessioned2026-07-07T12:55:28Z
dc.date.available2026-07-07T12:55:28Z
dc.descriptionWe discovered in simulations of sliding coaxial nanotubes an unanticipated example of dynamical symmetry breaking taking place at the nanoscale. While both nanotubes are perfectly left-right symmetric and nonchiral, a nonzero angular momentum of phonon origin appears spontaneously at a series of critical sliding velocities, in correspondence with large peaks of the sliding friction. The non-linear equations governing this phenomenon resemble the rotational instability of a forced string. However, several new elements, exquisitely "nano" appear here, with the crucial involvement of Umklapp and of sliding nanofriction.
dc.descriptionTo appear in PRL
dc.identifierhttps://arxiv.org/abs/0903.1584
dc.identifierhttp://arxiv.org/abs/0903.1584
dc.identifierPhys. Rev. Lett. 102, 125502 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.125502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224262
dc.subjectMaterials Science
dc.titleDynamical chiral symmetry breaking in sliding nanotubes
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