Manifestations of the Electron-Phonon Coupling in the Spectroscopy of High-Temperature Superconductors

Figure 8

(a) Spectral functions for different 𝜆 and temperatures 𝛽=𝑡/𝑇. (b) Peak width Δ𝜔 as a function of temperature 𝑇 for the t-J model (𝜆=0) and t-J-H model in the strong coupling EPI limit (𝜆=0.462 and 𝜆=1). Temperature is in Kelvins under assumption that 𝑡=0.4 eV.

(a)

(b)