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Landscape, the Scale of SUSY Breaking, and Inflation
Renata Kallosh, Andrei Linde
We argue that in the simplest version of the KKLT model, the maximal value of the Hubble constant during inflation cannot exceed the present value of the gravitino mass, H< m_{3/2}…
A Stringy Cloak for a Classical Singularity
Atish Dabholkar, Renata Kallosh, Alexander Maloney
We consider a class of 4D supersymmetric black hole solutions, arising from string theory compactifications, which classically have vanishing horizon area and singular space-time g…
D3/D7 Brane Inflation and Semilocal Strings
Keshav Dasgupta, Jonathan P. Hsu, Renata Kallosh +2
Among the inflationary models based on string theory, the D3/D7 model has the advantage that the flatness of the inflaton potential can be protected even with moduli stabilization.…
Racetrack Inflation
J. J. Blanco-Pillado, C. P. Burgess, J. M. Cline +5
We develop a model of eternal topological inflation using a racetrack potential within the context of type IIB string theory with KKLT volume stabilization. The inflaton field is t…
Deformation, non-commutativity and the cosmological constant problem
Renata Kallosh
In this talk we provide arguments on possible relation between the cosmological constant in our space and the non-commutativity parameter of the internal space of compactified stri…
Volume Stabilization and the Origin of the Inflaton Shift Symmetry in String Theory
Jonathan P. Hsu, Renata Kallosh
The main problem of inflation in string theory is finding the models with a flat potential, consistent with stabilization of the volume of the compactified space. This can be achie…