Optical absorption edge in one-dimensional conductors

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dc.creatorCarmelo, J. M. P.
dc.creatorSacramento, P. D.
dc.creatorPeres, N. M. R.
dc.creatorBaeriswyl, D.
dc.date1998-05-05
dc.date.accessioned2026-07-07T03:10:27Z
dc.date.available2026-07-07T03:10:27Z
dc.descriptionThe frequency-dependent conductivity is studied for both the one-dimensional Hubbard model and a model of spinless fermions, using a selection rule, the Bethe ansatz energy eigenstates, and conformal invariance. For densities where the system is metallic the absorption spectrum has two contributions, a Drude peak at ω= 0 separated by a pseudo-gap from a broad absorption band whose lower edge is characterized by a non-classical critical exponent. Our findings are expected to shed new light on the ``far infrared puzzle'' of metallic organic chain compounds.
dc.description4 pages, 2 columns, 2 figs
dc.identifierhttps://arxiv.org/abs/cond-mat/9805043
dc.identifierhttp://arxiv.org/abs/cond-mat/9805043
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28245
dc.subjectCondensed Matter
dc.titleOptical absorption edge in one-dimensional conductors
dc.typetext

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