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Incommensurate antiferromagnetism in the two-dimensional Hubbard model

โœ Scribed by Schulz, H. J.


Book ID
126094315
Publisher
The American Physical Society
Year
1990
Tongue
English
Weight
220 KB
Volume
64
Category
Article
ISSN
0031-9007

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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