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Topological solitons in helical strings
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). Los Alamos National Laboratory, USA.
Number of Authors: 2
2015 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 91, no 6, 062601Article in journal (Refereed) Published
Abstract [en]

The low-energy physics of (quasi) degenerate one-dimensional systems is typically understood as the particlelike dynamics of kinks between stable, ordered structures. Such dynamics, we show, becomes highly nontrivial when the ground states are topologically constrained: a dynamics of the domains rather than on the domains which the kinks separate. Motivated by recently reported observations of charged polymers physio-adsorbed on nanotubes, we study kinks between helical structures of a string wrapping around a cylinder. While their motion cannot be disentangled from domain dynamics, and energy and momentum is not concentrated in the solitons, the dynamics of the domains can be folded back into a particle-like description of the local excitations.

Place, publisher, year, edition, pages
2015. Vol. 91, no 6, 062601
National Category
Physical Sciences Mathematics
Identifiers
URN: urn:nbn:se:su:diva-118938DOI: 10.1103/PhysRevE.91.062601ISI: 000356900600004OAI: oai:DiVA.org:su-118938DiVA: diva2:842985
Available from: 2015-07-24 Created: 2015-07-21 Last updated: 2017-12-04Bibliographically approved

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Balatsky, Alexander V.
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