The dynamical spin structure factor for the anisotropic spin-1/2 Heisenberg chain

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dc.creatorPereira, R. G.
dc.creatorSirker, J.
dc.creatorCaux, J. -S.
dc.creatorHagemans, R.
dc.creatorMaillet, J. M.
dc.creatorWhite, S. R.
dc.creatorAffleck, I.
dc.date2006-03-27
dc.date2006-06-28
dc.date.accessioned2026-07-07T07:04:57Z
dc.date.available2026-07-07T07:04:57Z
dc.descriptionThe longitudinal spin structure factor for the XXZ-chain at small wave-vector q is obtained using Bethe Ansatz, field theory methods and the Density Matrix Renormalization Group. It consists of a peak with peculiar, non-Lorentzian shape and a high-frequency tail. We show that the width of the peak is proportional to q^2 for finite magnetic field compared to q^3 for zero field. For the tail we derive an analytic formula without any adjustable parameters and demonstrate that the integrability of the model directly affects the lineshape.
dc.description4 pages, 3 figures, published version
dc.identifierhttps://arxiv.org/abs/cond-mat/0603681
dc.identifierhttp://arxiv.org/abs/cond-mat/0603681
dc.identifierPhys. Rev. Lett. 96, 257202 (2006)
dc.identifierdoi:10.1103/PhysRevLett.96.257202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109514
dc.subjectStrongly Correlated Electrons
dc.titleThe dynamical spin structure factor for the anisotropic spin-1/2 Heisenberg chain
dc.typetext

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