Speaker
Dr
Jacob Leedom
(FZU)
Description
I will discuss how axions can be used as a probe of string
theory via cosmological and terrestrial experiments. The focus will
largely be on gravitational wave production via the spectator mechanism
and how quantum gravity constrains the possibilities. I will also
discuss how the QCD axion can imply a bound the compactification volume
and non-perturbative particle production axions in the early universe.