34 citations · 87 across the 5 of their papers we have counts for
13 papers · 1 filter
Supergraph Approach in a Higher-order LDE Calculation of the Effective Potential for F-type Broken SUSY
M. C. B. Abdalla, R. L. S. Farias, J. A. Helayël-Neto +2
In this work, we adopt the simplest model that spontaneously breaks supersymmetry, namely, the minimal O'Raifeartaigh model. The effective potential is computed in the framework of…
On the SU(1,1) Thermal Group of Bosonic Strings and D-Branes
M. C. B. Abdalla, A. L. Gadelha, I. V. Vancea
All possible Bogoliubov operators that generate the thermal transformations in the Thermo Field Dynamics (TFD) form a SU(1,1) group. We discuss this contruction in the bosonic stri…
Entropy of Bosonic Open String and Boundary Conditions
M. C. B. Abdalla, E. L. Graca, I. V. Vancea
The entropy of the states associated to the solutions of the equations of motion of the bosonic open string with combinations of Neumann and Dirichlet boundary conditions is given.…
Bosonic D-branes at finite temperature with an external field
M. C. B. Abdalla, A. L. Gadelha, I. V. Vancea
Bosonic boundary states at finite temperature are constructed as solutions of boundary conditions at for bosonic open strings with a constant gauge field coupled…
Duality between coordinates and Dirac field
M. C. B. Abdalla, A. L. Gadelha, I. V. Vancea
The duality between the Cartesian coordinates on the Minkowski space-time and the Dirac field is investigated. Two distinct possibilities to define this duality are shown to exist.…
Massive Two-Dimensional Quantum Chromodynamics
E. Abdalla, M. C. B. Abdalla, K. D. Rothe
In this work we study the zero-charge sector of massive two-dimensional Quantum Chromodynamics in the decoupled formulation. We find that some general features of the massless theo…