Andrea Borghese

The SU(3)-invariant sector of new maximal supergravity

A bstractWe investigate the SU(3)-invariant sector of the one-parameter family of SO(8) gauged maximal supergravities that has been recently discovered. To this end, we construct the

All G(2) invariant critical points of maximal supergravity

\mathcal{N}=2

Triality, periodicity and stability of SO(8) gauged supergravity

truncation of this theory and analyse its full vacuum structure. The number of critical point is doubled and includes new

Metastable supersymmetry breaking in extended supergravity

\mathcal{N}=0

Minimal stability in maximal supergravity

and

A geometric bound on F-term inflation

\mathcal{N}=1

Power-law cosmologies in minimal and maximal gauged supergravity

branches. We numerically exhibit the parameter dependence of the location and cosmological constant of all extrema. Moreover, we provide their analytic expressions for cases of special interest. Finally, while the mass spectra are found to be parameter independent in most cases, we show that the novel non-supersymmetric branch with SU(3) invariance provides the first counterexample to this.

Superconductors for superstrings on AdS(5) x T-1,T-1

A bstractWe perform an exhaustive classification of G2 invariant extrema of the most general gauged

Inflationary implications of supersymmetry breaking

\mathcal{N}=8

Proceedings, 9th Mexican School on Gravitation and Mathematical Physics: Cosmology for the XXI Century: Inflation, Dark Matter and Dark Energy (DGFM-SMF) : Puerto Vallarta, Jalisco, Mexico, December 3-7, 2012

supergravity in four dimensions. They comprise four branches of Anti-de Sitter solutions labelled by a single parameter. Interestingly, while the gauge groups vary with the parameters, the mass spectra are invariant. One of these is a new non-supersymmetric yet stable point. Our analysis includes the recently proposed family of SO(8) gauged supergravities and more.