25 citations · 72 across the 9 of their papers we have counts for
9 papers
Photonic entanglement with accelerated light
R. C. Souza Pimenta, G. H. dos Santos, A. B. Barreto +2
Accelerated light has been demonstrated with laser light and diffraction. Within the diffracting field it is possible to identify a portion that carries most of the beam energy, wh…
Metamaterial branes
F. A. P. Alves-Junior, A. B. Barreto, F. Moraes
In this article, we propose metamaterials analog brane models based on the geometric optics approach. We show how to model the Randall-Sundrum thin brane model and the Gremm model…
Implications of Kleinian relativity
F. A. P. Alves, A. B. Barreto, F. Moraes
Inspired in metamaterials, we present a covariant mechanics for particles in Kleinian spacetime and show some of its effects, such as time contraction and length dilatation. We pre…
Cosmological Solutions for the Geometrical Scalar-Tensor with the Potential Determined by the Noether Symmetry Approach
Adriano B. Barreto, Gilberto M. Kremer
In this work we consider a scale-tensor theory in which the space-time is endowed with a Weyl integrable geometrical structure due to the Palatini variational method. Since the sca…
Weyl frames and canonical transformations in geometrical scalar-tensor theories of gravity
A. B. Barreto, M. L. Pucheu, C. Romero
We consider scalar-tensor theories of gravity defined in Weyl integrable space-time and show that in the ADM formalism Weyl transformations corresponding to change of frames induce…
Quantum cosmology in an anisotropic n-dimensional universe
F. A. P. Alves-Júnior, M. L. Pucheu, A. B. Barreto +1
We investigate quantum cosmological models in an n-dimensional anisotropic universe in the presence of a massless scalar field. Our basic inspiration comes from Chodos and Detweile…
Cosmological models in Weyl geometrical scalar-tensor theory
M. L. Pucheu, F. A. P. Alves-Junior, A. B. Barreto +1
We investigate cosmological models in a recently proposed geometrical theory of gravity, in which the scalar field appears as part of the space-time geometry. We extend the previou…
Space-time singularities in Weyl manifolds
I. P. Lobo, A. B. Barreto, C. Romero
We extend one of the Hawking-Penrose singularity theorems in general relativity to the case of some scalar-tensor gravity theories in which the scalar field has a geometrical chara…
Extending the ADM formalism to Weyl geometry
A. B. Barreto, T. S. Almeida, C. Romero
In order to treat quantum cosmology in the framework of Weyl spacetimes we take the first step of extending the Arnowitt-Deser-Misner formalism to Weyl geometry. We then obtain an…