CARDOSO, M. V.; http://lattes.cnpq.br/3932814734779771; CARDOSO, Marcílio Veras.
Abstract:
In this work we make quantum corrections to the potential of a classical theory
with symmetry ZN with the intention of understanding the effects quantum of theory
via the radiative corrections of effective potential in a loop. For this to happen we
need the n elds that make up the theory with discrete symmetry, expected values
have nonzero vacuum that minimizes the potential. However, we know that the potential
has interaction terms, and that if we look at the quantum vacuum that has
physical interpretation of the state of particles, these terms yield corrections to the
potential and obtain the true vacuum expectation value of the theory that minimizes
the effective potential. With this we hope that arises the phenomenon of spontaneous
symmetry breaking whose purpose is to produce topological defects like domain walls
and junctions. In the present study advance the introduction of nite temperature
effects via mechanism Matsubara.