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gr-qc2006★ 2 cited
Brane Lorentz Symmetry from Lorentz Breaking in the Bulk
O. Bertolami, C. Carvalho
We propose the mechanism of spontaneous symmetry breaking of a bulk vector field as a way to generate the selection of bulk dimensions invisible to the standard model confined to t…
hep-th2006★ 4 cited
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…
physics.hist-ph2006
Cosmology in Portugal: The First 20 Years
Orfeu Bertolami
We reminisce on the first steps of the cosmology community in Portugal, which can be traced back to about 20 years ago, and discuss its achievements and current specificities. We a…