Inversion techniques for optical conductivity data

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dc.creatorSchachinger, E.
dc.creatorNeuber, D.
dc.creatorCarbotte, J. P.
dc.date2005-10-25
dc.date2006-04-14
dc.date.accessioned2026-07-07T06:45:29Z
dc.date.available2026-07-07T06:45:29Z
dc.descriptionOptical data is encoded with information on the microscopic interaction between charge carriers. For an electron-phonon system, the Eliashberg equations apply and a Kubo formula can be used to get the infrared conductivity. The task of extracting the electron-phonon spectral density $α^2F(ω)$ from data is rather complicated and, thus, simplified but approximate expressions for the conductivity have often been used. We test the accuracy of such simplifications and also discuss the advantages and disadvantages of various numerical methods needed in the inversion process. Normal and superconducting state are considered as well as boson exchange mechanisms which might be applicable to the High-$T_c$ oxides.
dc.description21 pages, 14 figures; accepted for publication by Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0510662
dc.identifierhttp://arxiv.org/abs/cond-mat/0510662
dc.identifierPhys. Rev. B 73, 184507 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.184507
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103058
dc.subjectSuperconductivity
dc.titleInversion techniques for optical conductivity data
dc.typetext

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