Stabilization of the Compactification Volume by Quantum Corrections

Marcus Berg, Michael Haack, Boris Körs
2006 Physical Review Letters  
We discuss prospects for stabilizing the volume modulus of N=1 supersymmetric type IIB orientifold compactifications using only perturbative corrections to the Kahler potential. Concretely, we consider the known string loop corrections and tree-level alpha' corrections. They break the no-scale structure of the potential, which otherwise prohibits stabilizing the volume modulus. We argue that when combined, these corrections provide enough flexibility to stabilize the volume of the internal
more » ... f the internal space without non-perturbative effects, although we are not able to present a completely explicit example within the limited set of currently available models. Furthermore, a certain amount of fine-tuning is needed to obtain a minimum at large volume.
doi:10.1103/physrevlett.96.021601 pmid:16486559 fatcat:y2jc4762mfekplj36qtbg3jilu