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Phys Rev Lett. 2003 Jun 13;90(23):237003. Epub 2003 Jun 10.

Proposal to determine the spectrum of pairing glue in high-temperature superconductors.

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Theoretical Division, MS B262, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.


We propose a method for an analysis of the angle-resolved photoemission data in two-dimensional anisotropic superconductors which directly yields the spectral function of the bosons mediating Cooper pairing. The method includes a self-consistency check for the validity of the approximations made in the analysis. We explicitly describe the experimental data needed for implementing the proposed procedure.

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