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Electron-phonon interaction in a strongly correlated Hubbard system

โœ Scribed by A.N. Das; S. Sil


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
395 KB
Volume
161
Category
Article
ISSN
0921-4534

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Renormalization of the electronโ€“phonon i
โœ R. Citro; S. Cojocaru; M. Marinaro ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 165 KB

We calculate the electron-phonon vertex in the two-dimensional Hubbard model by a strong coupling approach based on cumulant expansion. The role of the on-site Coulomb interaction on the coupling of the electrons to the Holstein phonons is investigated in different regions of the Brillouin zone. The