48 citations · 83 across the 5 of their papers we have counts for
5 papers
Correlation function for the state: Determination of the binding, scattering lengths, effective ranges and molecular probabilities
A. Feijoo, L. R. Dai, L. M. Abreu +1
We perform a study of the correlation functions using an extension of the local hidden gauge approach which provides the interaction from the exchange of ligh…
Finite-size effects on the phase transition in a four- and six-fermion interaction model
L. M. Abreu, F. C. Khanna, A. P. C. Malbouisson +2
We consider four- and six-fermion interacting models at finite temperature and density. We construct the corresponding free energies and investigate the appearance of first- and se…
Finite-size effects on the chiral phase diagram of four-fermion models in four dimensions
L. M. Abreu, A. P. C. Malbouisson, J. M. C. Malbouisson +1
We study the size dependence of the dynamical symmetry breaking in the four-dimensional Nambu-Jona-Lasinio model. We show that the presence of boundaries reduces the chiral breakin…
Gauge Fluctuations in Superconducting Films
L. M. Abreu, A. P. C. Malbouisson, I. Roditi
In this paper we consider a superconducting film modeled by the Ginzburg-Landau model, confined between two parallel planes a distance apart from one another. Our approach is b…
The Cangemi-Jackiw manifold in high dimensions and symplectic structure
L. M. Abreu, A. E. Santana, A. Ribeiro Filho
The notion of Poincare gauge manifold (), proposed in the context of an (1+1) gravitational theory by Cangemi and Jackiw (D. Cangemi and R. Jackiw, Ann. Phys. (N.Y.) 225 (1993)…