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Properties of the dx2 − y2 gap in the two-dimensional Hubbard model

✍ Scribed by P. Monthoux; D.J. Scalapino


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
229 KB
Volume
199-200
Category
Article
ISSN
0921-4526

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Properties of doped holes in the antifer
✍ G. Vignale; M.R. Hedayati 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 128 KB

We calculate the self-energy of a single hole in the half-filled antlferromaguetic two-dimensional Hubbard model. The minimum energy occurs at k = (7r/2, 7r/2) and is 37% lower than in Hartree-Fock. The hole lifetime tends to infinity for low-lying states, showing that quasiholes are well-defined ex