Nonlinear optical response and spin-charge separation in one-dimensional Mott insulators

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dc.creatorMizuno, Y.
dc.creatorTsutsui, K.
dc.creatorTohyama, T.
dc.creatorMaekawa, S.
dc.date2000-06-22
dc.date2000-07-08
dc.date.accessioned2026-07-07T02:37:58Z
dc.date.available2026-07-07T02:37:58Z
dc.descriptionWe theoretically study the nonlinear optical response and photoexcited states of the Mott insulators. The nonlinear optical susceptibility χ^(3) is calculated by using the exact diagonalization technique on small clusters. From the systematic study of the dependence of χ^(3) on dimensionality, we find that the spin-charge separation plays a crucial role in enhancing χ^(3) in the one-dimensional (1D) Mott insulators. Based on this result, we propose a holon-doublon model, which describes the nonlinear response in the 1D Mott insulators. These findings show that the spin-charge separation will become a key concept of optoelectronic devices.
dc.description5 pages with 3 figures, to appear in PRB RC, 15 August 2000
dc.identifierhttps://arxiv.org/abs/cond-mat/0006335
dc.identifierhttp://arxiv.org/abs/cond-mat/0006335
dc.identifierPhys. Rev. B 62, R4769-R4773 (2000)
dc.identifierdoi:10.1103/PhysRevB.62.R4769
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16501
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleNonlinear optical response and spin-charge separation in one-dimensional Mott insulators
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