Nota de FísicaPublicado
On the Critical Properties of the Topological Ginzburg-Landau Model
Claude de Calan; A.P.C. Malbouisson; F. S. Nogueira; N.F. Svaiter
1998
Datos de la publicación
- Autores
- Claude de Calan; A.P.C. Malbouisson; F. S. Nogueira; N.F. Svaiter
- Tipo
- Nota de Física
- Estado
- Publicado
- Fecha de publicación
- 1998
- Descripción
- We consider a Ginzburg-Landau model for superconductivity with a Chern-Simons term added. The flow diagram contains two charged fixed points corresponding to the tricritical and infrared stable fixed points. The topological coupling controls the fixed point structure and eventually the region of first order transitions disappears. We compute the critical exponents as a function of the topological coupling. We obtain that the value of the <math>\nu\,\!</math> exponent does not vary very much from the <math>XY\,\!</math> value, <math>\nu_{XY}=0.67\,\!</math> . This shows that the Chern-Simons term does not affect considerably the <math>XY\,\!</math> scaling of superconductors. We discuss briefly the possible phenomenological applications of this model.
- Año
- 1998
- Número
- CBPF-NF-008/98
- Vínculo con tesis
- No
- Vínculo con beca
- No