312 citations · 701 across the 14 of their papers we have counts for
5 papers · 1 filter
Vortex Condensation in the Dual Chern-Simons Higgs Model
Rudnei O. Ramos, J. F. Medeiros Neto
The contribution of nontrivial vacuum (topological) excitations, more specifically vortex configurations of the self-dual Chern-Simons-Higgs model, to the functional partition func…
Local Approximations for Effective Scalar Field Equations of Motion
Arjun Berera, Ian G. Moss, Rudnei O. Ramos
Fluctuation and dissipation dynamics is examined at all temperature ranges for the general case of a background time evolving scalar field coupled to heavy intermediate quantum fie…
Emergence of Tricritical Point and Liquid-Gas Phase in the Massless 2+1 Dimensional Gross-Neveu Model
Jean-Loic Kneur, Marcus Benghi Pinto, Rudnei O. Ramos +1
A complete thermodynamical analysis of the 2+1 dimensional massless Gross-Neveu model is performed using the optimized perturbation theory. This is a non-perturbative method that a…
Updating the Phase Diagram of the Gross-Neveu Model in 2+1 Dimensions
Jean-Loic Kneur, Marcus Benghi Pinto, Rudnei O. Ramos +1
The method of optimized perturbation theory (OPT) is used to study the phase diagram of the massless Gross-Neveu model in 2+1 dimensions. In the temperature and chemical potential…
Nonequilibrium dynamics of quantum fields
R. L. S. Farias, N. C. Cassol-Seewald, G. Krein +1
The nonequilibrium effective equation of motion for a scalar background field in a thermal bath is studied numerically. This equation emerges from a microscopic quantum field theor…