A Geometric Approach to Modulus Stabilization
  Modulus stabilization, a must for explaining the hierarchy problem in the context of the Randall-Sundrum (RS) scenario, is traditionally achieved through the introduction of an extra field with {\em 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. 
Sampurn Anand, Debajyoti Choudhury, Anjan A. Sen and Soumitra SenGupta
hep-th gr-qc hep-ph