6 papers
spectra, cubic couplings and the rigid fate of DGKT
Filippo Revello, Vincent Van Hemelryck
We show that in the DGKT scenario on a generic Calabi-Yau three-fold, a recently proposed holographic constraint on cubic couplings is satisfied if and only if the Calabi-Yau is ri…
Axion-Scalar Dynamics: from the Distance Conjecture to Cosmic Acceleration
Filippo Revello
We discuss the cosmology of axion-scalar systems in asymptotic limits of type IIB/F-theory flux compactifications. These results allow us to test a putative extension of the Distan…
Broken and restored: a holographic constraint for AdS vacua with orbifolds
Filippo Revello, Vincent Van Hemelryck
It has been suggested that families of weakly-coupled AdS vacua with a large- holographic dual must satisfy non-trivial consistency requirements, which amount to the vanishing o…
The gravitational wave landscape of cosmic string networks with varying tension
Luca Brunelli, Filippo Revello, Gonzalo Villa
We fully classify the phenomenology of gravitational wave emission from scaling cosmic string networks with varying tension and compute the spectral indices of the resulting stocha…
Cosmic superstrings in large volume compactifications: PTAs, LISA and time-varying tension
Anish Ghoshal, Filippo Revello, Gonzalo Villa
The Stochastic Gravitational Wave Background (SGWB) from cosmic superstrings offers one of the few known possibilities to test String Theory within current experimental reach. Howe…
Cosmic (super)strings with a time-varying tension
Filippo Revello, Gonzalo Villa
Cosmic (super)strings offer promising ways to test ideas about the early universe and physics at high energies. While in field theory constructions their tension is usually assumed…