Bogomol'nyi bound and screw dislocations in a mesoscopic smectic-A

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dc.creatorAkkermans, Eric
dc.creatorGhosh, Sankalpa
dc.creatorSchtalheim, Amos
dc.date2004-09-27
dc.date.accessioned2026-07-07T03:01:03Z
dc.date.available2026-07-07T03:01:03Z
dc.descriptionThe de Gennes free energy functional of an infinite smectic-A liquid crystal at the dual point is shown to be topological and to depend only on the number of screw dislocations and the anisotropy. This result generalizes the existence of a Bogomol'nyi bound to an anisotropic system. The role of the boundary of a finite mesoscopic smectic is to provide a mechanism for the existence of thermodynamically stable screw dislocations. We obtain a closed expression for the corresponding free energy and a relation between the applied twist and the number of screw dislocations.
dc.description4 pages, 2 eps figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0409695
dc.identifierhttp://arxiv.org/abs/cond-mat/0409695
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24943
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSoft Condensed Matter
dc.titleBogomol'nyi bound and screw dislocations in a mesoscopic smectic-A
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