378 citations
- Instituto Superior TécnicoPT43 papers
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4 papers · 1 filter
Bifurcation of Plasma Balls and Black Holes to Lobed Configurations
Vitor Cardoso, Oscar J. C. Dias
At high energy densities any quantum field theory is expected to have an effective hydrodynamic description. When combined with the gravity/gauge duality an unified picture emerges…
Noncommutative Quantum Cosmology
C. Bastos, O. Bertolami, N. Dias +1
One presents a phase-space noncommutative extension of Quantum Cosmology in the context of a Kantowski-Sachs (KS) minisuperspace model. We obtain the Wheeler-DeWitt (WDW) equation…
Spontaneous Symmetry Breaking in the Bulk as a Localization Mechanism of Fields on the Brane
Orfeu Bertolami, Carla Carvalho
We consider real and complex scalar fields non-minimally coupled to gravity in the bulk spacetime and study their impact on the brane upon acquiring a non-vanishing vacuum expectat…
Deformation quantization of noncommutative quantum mechanics and dissipation
C. Bastos, O. Bertolami, N. C. Dias +1
We review the main features of the Weyl-Wigner formulation of noncommutative quantum mechanics. In particular, we present a -product and a Moyal bracket suitable for this th…