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58 papers · 1 filter
N=2 Super-Higgs, N=1 Poincare' Vacua and Quaternionic Geometry
L. Andrianopoli, R. D'Auria, S. Ferrara +1
In the context of N=2 supergravity we explain the occurrence of partial super-Higgs with vanishing vacuum energy and moduli stabilization in a model suggested by superstring compac…
Gauged extended supergravity without cosmological constant: no-scale structure and supersymmetry breaking
L. Andrianopoli, R. D'Auria, S. Ferrara +1
We consider the interplay of duality symmetries and gauged isometries of supergravity models giving N-extended, spontaneously broken supergravity with a no-scale structure. Some ex…
Near-field light emission from nano- and micrometric complex structures
M. Pieruccini, S. Savasta, R. Girlanda +2
We propose a general theoretical scheme for the investigation of light emitted from nano- and micrometric structures of arbitrary shape and composition. More specifically, the prop…
133Cs87Rb Laser Cooled Dual Fountain
D. Calonico, Y. Sortais, S. Bize +5
At BNM-SYRTE laboratories in Paris two 133Cs fountains and a 87Rb one have been already demonstrated. This paper illustrates the construction of a 87Rb and Cs dual fountain realize…
No-scale N=4 supergravity coupled to Yang-Mills: the scalar potential and super-Higgs effect
Riccardo D'Auria, Sergio Ferrara, Maria Antonia Lledó +1
We derive the scalar potential of the effective theory of type IIB orientifold with 3-form fluxes turned on in presence of non abelian brane coordinates. N=4 supergravity predicts…
Evidences of vortex curvature and anisotropic pinning in superconducting films by quantitative magneto-optics
F. Laviano, D. Botta, A. Chiodoni +5
We present the experimental observation of magnetic field line curvature at the surface of a superconducting film by local quantitative magneto-optics. In addition to the knowledge…