Finite band inversion of ARPES in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ in comparison with optics

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dc.creatorSchachinger, E.
dc.creatorCarbotte, J. P.
dc.date2008-03-03
dc.date.accessioned2026-07-07T09:31:40Z
dc.date.available2026-07-07T09:31:40Z
dc.descriptionUsing a maximum entropy technique within a finite band Eliashberg formalism we extract from recent high accuracy nodal direction angular resolved photo-emission spectroscopy (ARPES) data in optimally doped Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ (Bi2212) a quasiparticle electron-boson spectral density. Both normal and superconducting state with d-wave gap symmetry are treated. Finite and infinite band results are considered and contrasted. We compare with results obtained for the related transport spectral density which follows from a similar inversion of optical data. We discuss the implication of our results for quasiparticle renormalizations in the antinodal direction.
dc.description9 pages, 7 figures submitted to Physical Review B
dc.identifierhttps://arxiv.org/abs/0803.0203
dc.identifierhttp://arxiv.org/abs/0803.0203
dc.identifierPhys. Rev. B 77, 094524 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.094524
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158541
dc.subjectSuperconductivity
dc.titleFinite band inversion of ARPES in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ in comparison with optics
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