#string theory
10 papers match
Generalized Bergshoeff-de Roo identification in the Supergravity frame
Walter H. Baron, Fabian A. Portilla
The paper refines the Generalized Bergshoeff‑de Roo identification to produce higher‑derivative couplings directly in the standard supergravity framework, using diffeomorphism, Lor…
Quadratic Axion Couplings in String Theory
Naman Agarwal, Andrew R. Frey, Ratul Mahanta +1
The paper investigates how string theory can generate quadratic couplings between axion-like particles and electromagnetic fields, exploring classical, perturbative, and non‑pertur…
Spectator Axions in String Inflation and Primordial Black Holes
Michele Cicoli, Dario L. Lorenzoni, Evan McDonough +1
The paper examines how light spectator axions during Fibre Inflation in string theory influence the generation of primordial black holes, showing that axions with moderately large…
Gravitational Waves from Multiple Cosmic Superstrings and the Overshoot Problem
Luca Brunelli, Michele Cicoli, Muhammad Hassan +2
The paper analyzes how multiple species of cosmic superstrings in post‑inflationary string cosmology avoid the overshoot problem via friction from a gravitational‑wave radiation ba…
Twisting BFSS & IKKT
Fabian Hahner, Natalie M. Paquette
The paper studies twisted versions of the BFSS matrix quantum mechanics and the IKKT matrix model at large N, computes their BV‑BRST cohomology, and relates these twists to corresp…
Testing string theory with combined cosmological probes: a case study for dark matter gravitons
Alkistis Pourtsidou
The paper uses current CMB and BAO data, together with forecasts for future Stage‑IV surveys, to test a string‑theory motivated Dark Dimension scenario in which dark matter is made…