4 papers
Condensation of Vortex-Strings: Effective Potential Contribution Through Dual Actions
Rudnei O. Ramos, J. F. Medeiros Neto, Daniel G. Barci +1
Topological excitations are believed to play an important role in different areas of physics. For example, one case of topical interest is the use of dual models of quantum cromody…
The point-splitting regularization of (2+1)d parity breaking models
D. G. Barci, J. F. Medeiros Neto, L. E. Oxman +1
The coefficient of the Chern-Simons term in the effective action for massive Dirac fermions in three dimensions is computed by using the point-splitting regularization method. We s…
Functional Bosonization of Non-Relativistic Fermions in Dimensions
D. G. Barci, Cesar A. Linhares, J. F. Medeiros Neto +1
We analyze the universality of the bosonization rules in non-relativistic fermionic systems in . We show that, in the case of linear fermionic dispersion relations, a gener…
On the Electromagnetic Response of Charged Bosons Coupled to a Chern-Simons Gauge Field: A Path Integral Approach
D. G. Barci, E. V. Correa Silva, J. F. Medeiros Neto
We analyze the electromagnetic response of a system of charged bosons coupled to a Chern-Simons gauge field. Path integral techniques are used to obtain an effective action for the…