Geometric approach to modulus stabilization

Abstract

Modulus stabilization, a must for explaining the hierarchy problem in the context of Randall-Sundrum-like scenarios, is traditionally achieved through the introduction of an extra field with ad hoc couplings. We point out that the stabilization can, instead, be achieved in a purely geometrodynamical way, with plausible quantum corrections in the gravity sector playing the key role. The size of the corrections that lead to acceptable phenomenology is also delineated.