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
Equation of state of the fermionic two-dimensional Hubbard model
โ Scribed by LeBlanc, J. P. F.; Gull, Emanuel
- Book ID
- 121363366
- Publisher
- The American Physical Society
- Year
- 2013
- Tongue
- English
- Weight
- 594 KB
- Volume
- 88
- Category
- Article
- ISSN
- 1098-0121
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