Nonlinear Optical Response of Spin Density Wave Insulators

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dc.creatorJafari, S. A.
dc.creatorTohyama, T.
dc.creatorMaekawa, S.
dc.date2005-07-24
dc.date2006-02-07
dc.date.accessioned2026-07-07T06:41:25Z
dc.date.available2026-07-07T06:41:25Z
dc.descriptionWe calculate the third order nonlinear optical response in the Hubbard model within the spin density wave (SDW) mean field ansatz in which the gap is due to onsite Coulomb repulsion. We obtain closed-form analytical results in one dimension (1D) and two dimension (2D), which show that nonlinear optical response in SDW insulators in 2D is stronger than both 3D and 1D. We also calculate the two photon absorption (TPA) arising from the stress tensor term. We show that in the SDW, the contribution from stress tensor term to the low-energy peak corresponding to two photon absorption becomes identically zero if we consider the gauge invariant current properly.
dc.descriptionwe use \psfrag in figure
dc.identifierhttps://arxiv.org/abs/cond-mat/0507556
dc.identifierhttp://arxiv.org/abs/cond-mat/0507556
dc.identifierJPSJ, vol 75, p. 054703 (2006)
dc.identifierdoi:10.1143/JPSJ.75.054703
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101659
dc.subjectStrongly Correlated Electrons
dc.titleNonlinear Optical Response of Spin Density Wave Insulators
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