- Conference date: 22–27 April 2012
- Location: Bento Gonçalves, Rio Grande do Sul, Brazil
It is studied the symmetry restoration in a theory of a self-interacting charged scalar field at finite temperature and in the presence of an external magnetic field. The effective potential is evaluated nonperturbatively through the Optimized Perturbation Theory (OPT) nonperturbative method. In addition, we present an efficient numeric way to deal with the sum over the Landau levels in the case of working with weak magnetic fields.
- Magnetic fields
- Scalar field theory
- Finite temperature field theory
- Landau levels
- Nonperturbative techniques
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