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Title: Quasiparticle lifetimes in the charged Bose gas and the cuprates
Authors: Alexandrov, A.S.
Dent, C.J.
Issue Date: 2001
Citation: ALEXANDROV, A.S. and DENT, C.J., 2001. Quasiparticle lifetimes in the charged Bose gas and the cuprates. Journal of Physics Condensed Matter, 13(20), L417-L422.
Abstract: The scattering cross-section of a Coulomb potential screened by a charged Bose gas is calculated both above and below the Bose-Einstein condensation temperature, using the variable-phase method. In contrast with the case for the Bardeen-Cooper-Schrieffer superconductor, the screened scattering potential and quasiparticle lifetime are found to be very different in the superconducting and normal states. We apply the result to explain the appearance of a sharp peak in the angle-resolved photoemission spectra in some cuprates below the superconducting transition.
Description: This article was submitted for publication in the Journal of Physics: Condensed Matter [© IOP Publishing] and the definitive version is available at: http://dx.doi.org/10.1088/0953-8984/13/20/104
DOI: 10.1088/0953-8984/13/20/104
URI: https://dspace.lboro.ac.uk/2134/1156
Appears in Collections:Published Articles (Physics)

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