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Equivalence of the free fermion model to the ground state of the linear XY model

โœ Scribed by S. Krinsky


Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
141 KB
Volume
39
Category
Article
ISSN
0375-9601

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๐Ÿ“œ SIMILAR VOLUMES


Ground state properties of the two-dimen
โœ Nobuo Furukawa; Masatoshi Imada ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 171 KB

Two dimensional spin-fermion model is studied by using the perturbation method and the spin wave approximation. Non-crossing diagrams are calculated using the dominant pole approximation. As a result, we see that the renormalization parameter z is reduced as z ยขx L -1;4, where L is the linear dimens