Exact spin dynamics of the 1/r^2 supersymmetric t-J model in a magnetic field

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dc.creatorArikawa, Mitsuhiro
dc.creatorSaiga, Yasuhiro
dc.date2006-07-18
dc.date.accessioned2026-07-07T07:16:03Z
dc.date.available2026-07-07T07:16:03Z
dc.descriptionThe dynamical spin structure factor S^{zz}(Q,omega) in the small momentum region is derived analytically for the one-dimensional supersymmetric t-J model with 1/r^2 interaction. Strong spin-charge separation is found in the spin dynamics. The structure factor S^{zz}(Q,omega) with a given spin polarization does not depend on the electron density in the small momentum region. In the thermodynamic limit, only two spinons and one antispinon (magnon) contribute to S^{zz}(Q,omega). These results are derived via solution of the SU(2,1) Sutherland model in the strong coupling limit.
dc.description20 pages, 8 figures. Accepted for publication in J.Phys.A
dc.identifierhttps://arxiv.org/abs/cond-mat/0607444
dc.identifierhttp://arxiv.org/abs/cond-mat/0607444
dc.identifierJ.Phys. A39 (2006) 10603-10621
dc.identifierdoi:10.1088/0305-4470/39/34/001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/113447
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.subjectHigh Energy Physics - Theory
dc.subjectMathematical Physics
dc.titleExact spin dynamics of the 1/r^2 supersymmetric t-J model in a magnetic field
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