Open String Axiverse - Implications for String Compactifications

This High Energy Physics seminar explores the concept of the Open String Axiverse, presented by Giovanni Villadoro from ICTP, Trieste. Discover how localized charged fields, which are common in realistic string compactifications, can generate multiple perturbatively-exact global symmetries in four dimensions. Learn about the consequences of spontaneous symmetry breaking in this context, which creates a new axiverse compatible with post-inflationary evolutionary models. The presentation also covers potential phenomenological implications of this theoretical scenario, offering insights into fundamental physics concepts at the intersection of string theory and cosmology.