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- Instituto Politécnico de LisboaPT92 papers
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15 papers · 1 filter
Equivariant inverse spectral theory and toric orbifolds
Emily B. Dryden, Victor Guillemin, Rosa Sena-Dias
Let O be a symplectic toric 2n-dimensional orbifold with a fixed T^n-action and with a toric Kahler metric g. We previously explored whether, when O is a manifold, the equivariant…
Spin Density Waves and Domain Wall Interactions in Nanowires
Nicholas Sedlmayr, Vitalii Dugaev, Jamal Berakdar
We investigated how the dynamics of a domain wall are affected by the presence of spin density waves in a ferromagnetic wire. Domain walls and other scattering centres can cause co…
Regular black holes: Electrically charged solutions, Reissner-Nordström outside a de Sitter core
José P. S. Lemos, Vilson T. Zanchin
To have the correct picture of a black hole as a whole it is of crucial importance to understand its interior. The singularities that lurk inside the horizon of the usual Kerr-Newm…
A comparative measurement of and in In-In collisions at the CERN SPS
NA60 Collaboration, R. Arnaldi, K. Banicz +49
The NA60 experiment at the CERN SPS has studied meson production in In-In collisions at 158A GeV via both the and the decay channels. The yields and inverse s…
SU(5)xSU(5) unification revisited
David Emmanuel-Costa, Edison T. Franco, Ricardo Gonzalez Felipe
The idea of grand unification in a minimal supersymmetric SU(5)xSU(5) framework is revisited. It is shown that the unification of gauge couplings into a unique coupling constant ca…
Anti de Sitter black holes and branes in dynamical Chern-Simons gravity: perturbations, stability and the hydrodynamic modes
Terence Delsate, Vitor Cardoso, Paolo Pani
Dynamical Chern-Simons (DCS) theory is an extension of General Relativity in which the gravitational field is coupled to a scalar field through a parity violating term. We study pe…