Physics NotePublished
The Effective Potential for Composite Operator in the Scalar Model at Finite Temperature
G.N.J.Añaños; N.F. Svaiter
2000
Publication details
- Authors
- G.N.J.Añaños; N.F. Svaiter
- Type
- Physics Note
- Status
- Published
- Publication date
- 2000
- Description
- We discuss the <math>\varphi^4</math> and <math>\varphi^6</math> theory defined in a flat <math>D</math>-dimensional space-time. We assume that the system is in equilibrium with a thermal bath at temperature <math>\beta^{-1}</math>. To obtain non-perturbative result, the <math>1/N</math> expansion is used. The method of the composite operator (CJT) for summing a large set of Feynman graphs, is developed for the finite temperature system. The ressumed effective potential and the analysis of the <math>D=3</math> and <math>D=4</math> cases are given.
- Year
- 2000
- Number
- CBPF-NF-064/00
- Linked to a thesis
- No
- Linked to a grant
- No