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Effect of electron–phonon interaction on the single-particle spectral properties of the Hubbard model

✍ Scribed by R. Citro; S. Cojocaru; M. Marinaro


Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
99 KB
Volume
378-380
Category
Article
ISSN
0921-4526

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Renormalization of the electron–phonon i
✍ R. Citro; S. Cojocaru; M. Marinaro 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 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