7 papers
Partially embedding of the quantum mechanical analog of the nonlinear sigma model
R. Amorim, J. Barcelos-Neto, C. Wotzasek
We consider the quantum mechanical analog of the nonlinear sigma model. There are difficulties to completely embed this theory by directly using the Batalin, Fradkin, Fradkina, and…
Extended supersymmetry in D=1+1
R. Amorim, J. Barcelos-Neto
We extend superspace by introducing an antisymmetric tensorial coordinate. The resulting theory presents a supersymmetry with central charge. After integrating over the tensorial c…
Field-antifield formalism in a non-Abelian theory with one and two form gauge fields coupled in a topological way
R. Amorim, J. Barcelos-Neto
We make a systematic development of the non-Abelian formulation of two-form gauge fields with topological coupling with the Yang-Mills one-form connection. An analysis of the gauge…
Axial and gauge anomalies in the field antifield quantization of the generalized Schwinger model
R. Amorim, N. R. F. Braga, R. Thibes
In the generalized Schwinger model the vector and axial vector currents are linearly coupled, with arbitrary coefficients, to the gauge connection. Therefore it represents an inter…
Possible quantum obstructions to the process of Abelian conversion
Ricardo Amorim, Ronaldo Thibes
The procedure for Abelian conversion of second class constraints due to Batalin, Fradkin, Fradkina and Tyutin is considered at quantum level, by using the field-antifield formalism…
Extended Axial Model
R. Amorim, J. Barcelos-Neto
We study an extension of the axial model where local gauge symmetries are taken into account. The anomaly of the axial current is calculated by the Fujikawa formalism and the model…