3 papers
gr-qc2020
The effects of dark energy on the early universe with radiation and Bose-Einstein condensate
G. A. Monerat, F. G. Alvarenga, S. V. B. Gonçalves +4
This work analyzes the effects of quantization on a Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) model with positive curvature and material content composed of a Bose-Einstein cond…
gr-qc2020
The dynamics of the early universe in a model with radiation and a generalized Chaplygin gas
G. A. Monerat, C. G. M. Santos, G. Oliveira-Neto +2
The early universe is modeled through the quantization of a Friedmann-Robertson-Walker model with positive curvature of the spatial hypersurfaces. In this model, the universe is fi…
hep-th2019
First-Order Gauge Invariant Generalization of the Quantum Rigid Rotor
Suzicleide L. de Oliveira, Camila M. B. Santos, Ronaldo Thibes
A first-order gauge invariant formulation for the two-dimensional quantum rigid rotor is long known in the theoretical physics community as an isolated peculiar model. Parallel to…