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Detalhes

Detalhes

006
Publicações

2021

Exploring quantum-like turbulence with a two-component paraxial fluid of light

Autores
Silva, NA; Ferreira, TD; Guerreiro, A;

Publicação
NONLINEAR OPTICS AND APPLICATIONS XII

Abstract

2021

Reservoir computing with solitons

Autores
Silva, NA; Ferreira, TD; Guerreiro, A;

Publicação
NEW JOURNAL OF PHYSICS

Abstract

2021

Hardware-neutral tools for the exploration of optical phenomena in near-resonant atomic systems

Autores
Silva, NA; Ferreira, T; Guerreiro, A;

Publicação
INTERNATIONAL JOURNAL OF MODERN PHYSICS C

Abstract

2021

Pressureless static solutions in a Newton-Yukawa gravity model

Autores
Ferreira, TD; Novo, J; Silva, NA; Guerreiro, A; Bertolami, O;

Publicação
PHYSICAL REVIEW D

Abstract
Nonminimally coupled curvature-matter gravity models are an interesting alternative to the theory of general relativity to address the dark energy and dark matter cosmological problems. These models have complex field equations that prevent a full analytical study. Nonetheless, in a particular limit, the behavior of a matter distribution can, in these models, be described by a Schrodinger-Newton system. In nonlinear optics, the Schrodinger-Newton system can be used to tackle a wide variety of relevant situations, and several numerical tools have been developed for this purpose. Interestingly, these methods can be adapted to study general relativity problems as well as its extensions. In this work, we report the use of these numerical tools to study a particular nonminimal coupling model that introduces two new potentials, an attractive Yukawa potential, and a repulsive potential proportional to the energy density. Using the imaginary-time propagation method, we have shown that static solutions arise even at low energy density regimes.

2021

Analogue cosmology: using techniques from nonlinear optics to study modified theories of gravity with non-minimal coupling between curvature and matter

Autores
Ferreira, TD; Novo, J; Bertolami, O; Silva, NA; Guerreiro, A;

Publicação
NONLINEAR OPTICS AND APPLICATIONS XII

Abstract