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Multi-polaron solutions, nonlocal effects and internal modes in a nonlinear chain
Division of Materials theory, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.
Örebro University, School of Science and Technology. Division of Materials theory, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.
Division of Materials theory, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden; Multiscale Materials Modelling, Department of Materials Science and Engineering, Royal Institute of Technology, Stockholm, Sweden.
Division of Materials theory, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.
2019 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 31, no 41, article id 415401Article in journal (Refereed) Published
Abstract [en]

Multipolaron solutions were studied in the framework of the Holstein one-dimensional molecular crystal model. The study was performed in the continuous limit where the crystal model maps into the nonlinear Schrodinger equation for which a new periodic dnoidal solution was found for the multipolaron system. In addition, the stability of the multi-polaron solutions was examined, and it was found that dnoidal and dnoidal solutions stabilize in different ranges of the parameter space. Moreover, the model was studied under the influence of nonlocal effects and the polaronic dynamics was described in terms of internal solitonic modes.

Place, publisher, year, edition, pages
IOP Publishing , 2019. Vol. 31, no 41, article id 415401
Keywords [en]
polaron, non-linear Schrodinger equation, lattice dynamics, soliton physics, non-linear physics
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:oru:diva-75698DOI: 10.1088/1361-648X/ab306eISI: 000476531900001PubMedID: 31317871OAI: oai:DiVA.org:oru-75698DiVA, id: diva2:1342874
Funder
Swedish Research Council, 2014-5993Swedish Foundation for Strategic Research Swedish Energy AgencyKnut and Alice Wallenberg FoundationeSSENCE - An eScience CollaborationAvailable from: 2019-08-14 Created: 2019-08-14 Last updated: 2019-08-14Bibliographically approved

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Eriksson, Olle

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