11 papers
Higher-Spin and Higher-Point Constraints on Stringy Amplitudes
Ivano Basile, Grant N. Remmen, Georgina Staudt
We employ multiparticle factorization to constrain deformations of tree-level open string amplitudes. Assuming minimal degeneracy among intermediate states of the same spin up thro…
Non-supersymmetric heterotic strings on
Ivano Basile, Daniel Robbins, Hassaan Saleem
We analyze the stability properties of a family of anti-de Sitter flux compactifications of the tachyon-free non-supersymmetric heterotic string in ten dimensions. In contrast with…
Instabilities in scale-separated Casimir vacua
Miquel Aparici, Ivano Basile, Nicolò Risso
Parametric scale separation is notoriously difficult to achieve in flux compactifications of gravitational effective theories. An appealing alternative to conventional Freund-Rubin…
UV/IR relations from the worldsheet
Christian Aoufia, Ivano Basile, Giorgio Leone +1
We derive universal scaling relations for the low-energy effective action of string theory, connecting the vacuum energy and gauge couplings to higher-derivative Wilson coefficient…
Non-supersymmetric branes and discrete topological terms
Ivano Basile, Vittorio Larotonda
In a recent work, Tachikawa and Zhang proved the existence of a discrete topological term in the unique non-supersymmetric heterotic string with no tachyons in ten dimensions. This…
Dark bubble cosmology and the equivalence principle
Ivano Basile, Alessandro Borys, Joaquin Masias
The main goal of string phenomenology is to find realistic models of particle physics and cosmology within string theory. Dark bubble cosmology is an alternative to string compacti…