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Solitary objects on quantum spin rings

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https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2004121610
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dc.contributor.advisorProf. Dr. Klaus Bärwinkel
dc.contributor.advisorapl. Prof. Dr. Heinz-Jürgen Schmidt
dc.contributor.advisorapl. Prof. Dr. Jürgen Schnack
dc.creatorShchelokovskyy, Pavlo
dc.date.accessioned2010-01-30T14:36:01Z
dc.date.available2010-01-30T14:36:01Z
dc.date.issued2004-12-16T15:31:47Z
dc.date.submitted2004-12-16T15:31:47Z
dc.identifier.urihttps://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2004121610-
dc.description.abstractWe investigate whether quantum spin rings with nearest-neighbor Heisenberg or Ising exchange interactions can host solitary states. Using complete diagonalization techniques the system is described without classical or semiclassical approximation. In this case definitions used in connection with classical solitons are not applicable, one needs to redefine what solitary objects on a quantum spin system with translational symmetry ought to be. Thus, we start our contribution by defining which quantum states possess solitary character. In addition we discuss useful observables in order to visualize solitary quantum states. Then we demonstrate for various quantum spin rings that solitary quantum states indeed exist, and that they are moving around the spin ring without changing their shape in the course of time.eng
dc.language.isoeng
dc.subjectMolecular magnets
dc.subjectHeisenberg model
dc.subjectSpin rings
dc.subjectSolitons
dc.subject.ddc530 - Physikger
dc.titleSolitary objects on quantum spin ringseng
dc.typeDissertation oder Habilitation [doctoralThesis]-
thesis.locationOsnabrück-
thesis.institutionUniversität-
thesis.typeDissertation [thesis.doctoral]-
thesis.date2004-12-10T12:00:00Z-
elib.elibid370-
elib.marc.edtfangmeier-
elib.dct.accessRightsa-
elib.dct.created2004-12-15T15:31:21Z-
elib.dct.modified2004-12-16T15:31:47Z-
dc.contributor.refereeapl. Prof. Dr. Klaus Betzler
dc.subject.dnb29 - Physik, Astronomieger
dc.subject.pacs75.10.Jm - Quantized spin modelseng
dc.subject.pacs05.45.Yv - Solitonseng
dc.subject.pacs75.50.Ee - Antiferromagneticseng
dc.subject.pacs75.50.Xx - Molecular magnetseng
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