5 papers
Non-supersymmetric dualities beyond the gauge algebra
Bernardo Fraiman, Vittorio Larotonda, Ling Lin +1
We provide a testing ground for dualities of non-supersymmetric type 0 orientifolds by finding the global forms of their gauge groups. As an example, we consider the Bergman--Gaber…
Non-abelian asymmetric orbifolds with vanishing one-loop vacuum energy
Bernardo Fraiman, Vittorio Larotonda, Michelangelo Tartaglia
We present a partial classification of four-dimensional, non-supersymmetric Type II toroidal orbifolds with non-abelian point groups of rotations, and vanishing vacuum energy at on…
Asymmetric orbifolds with vanishing one-loop vacuum energy
Vittorio Larotonda, Miguel Montero, Michelangelo Tartaglia
We present a systematic study of non-supersymmetric type II toroidal asymmetric orbifolds with vanishing vacuum energy at one-loop in string perturbation theory. These are engineer…
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…
Anomaly Inflow and Gauge Group Topology in the 10d Sugimoto String Theory
Vittorio Larotonda, Ling Lin
We revisit the chiral spectra on charged 1- and 5-branes in the 10d non-supersymmetric string theory (also known as the Sugimoto model), and verify that they co…