Nota de FísicaPublicado
Systematic Approach to Critical Phenomena by the Extended Variational Method and Coherent-Anomaly Method
Naoki Kawashima; Makoto Katori; C. Tsallis; Masuo Suzuki
1989
Dados da publicação
- Autores
- Naoki Kawashima; Makoto Katori; C. Tsallis; Masuo Suzuki
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 1989
- Descrição
- A general procedure to study critical phenomena of magnetic systems is discussed. It consists of systematic series of Landau-like approximations (Extended Variational Method) and the coherent-anomaly method (CAM). As for susceptibility, the present method is equivalent to the power-series CAM theory. On the other hand, the EVM gives a set of new approximants for other physical quantities. Applications to d-dimensional Ising ferromagnets are also described. The critical points and exponents are estimated with high accuracy.
- Ano
- 1989
- Número
- CBPF-NF-038/89
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não