15 citations · 46 across the 7 of their papers we have counts for
8 papers
Noncommutative Derivation of the Planck's Radiation Law
M. A. De Andrade, L. G. Ferreira Filho, C. Neves
The Planck's radiation law for the blackbody radiation spectrum was capable to explain the experimentally-measured blackbody spectrum. In order to get this result, Planck proposed…
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…
Primordial Universe with radiation and Bose-Einstein condensate
F. G. Alvarenga, L. G. Ferreira Filho, R. Fracalossi +5
In this work we derive a scenario {in which} the early universe consists of {radiation fluid} and Bose-Einstein condensate. The possibility of gravitational self-interaction due to…
Quantum noncomutativity in quantum cosmology
G. Oliveira-Neto, G. A. Monerat, E. V. Corrêa Silva +2
In the present work, we study the noncommutative version of a quantum cosmology model. The model has a Friedmann-Robertson-Walker geometry, the matter content is a radiative perfec…
An Early Universe Model with Stiff Matter and a Cosmological Constant
G. Oliveira-Neto, G. A. Monerat, E. V. Corrêa Silva +2
In the present work, we study the quantum cosmology description of a Friedmann-Robertson-Walker model in the presence of a stiff matter perfect fluid and a negative cosmological co…
Canonical transformation for stiff matter models in quantum cosmology
C. Neves, G. A. Monerat, G. Oliveira-Neto +2
In the present work we consider Friedmann-Robertson-Walker models in the presence of a stiff matter perfect fluid and a cosmological constant. We write the superhamiltonian of thes…