Thermal diffusion of sine-Gordon solitions

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Show simple item record Quintero, Niurka R. Sánchez, Angel Mertens, Franz G. 2012-08-27T10:01:46Z 2012-08-27T10:01:46Z 2000-07
dc.identifier.bibliographicCitation The European Physical Journal B, vol. 16, n. 2, jul. 2000. Pp. 361-368
dc.identifier.issn 1434-6028 (print version)
dc.identifier.issn 1434-6036 (online version)
dc.description.abstract We analyze the di usive motion of kink solitons governed by the thermal sine-Gordon equation. We analytically calculate the correlation function of the position of the kink center as well as the di usion coe cient, both up to second-order in temperature. We nd that the kink behavior is very similar to that obtained in the overdamped limit: There is a quadratic dependence on temperature in the di usion coe cient that comes from the interaction among the kink and phonons, and the average value of the wave function increases with p t due to the variance of the centers of individual realizations and not due to kink distortions. These analytical results are fully con rmed by numerical simulations.
dc.description.sponsorship Work at GISC (Leganes) has been supported by CICyT (Spain) grant MAT95-0325 and DGES (Spain) grant PB96-0119.
dc.format.mimetype application/pdf
dc.language.iso spa
dc.publisher Springer
dc.title Thermal diffusion of sine-Gordon solitions
dc.type article
dc.description.status Publicado
dc.subject.eciencia Matemáticas
dc.identifier.doi 10.1007/PL00011061
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
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