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A Stringy Mechanism for A Small Cosmological Constant

Sumitomo, Y (Hong Kong University of Science and Technology)
Tuesday 26 June 2012, 14:00-14:15

Seminar Room 2, Newton Institute Gatehouse


We propose a simple stringy mechanism that prefers metastable vacua with a small cosmological constant. We argue the generic probability distribution for the metastable vacua which peaks with a divergent behavior at the zero value of cosmological constant. Then we illustrate this in a model of type IIB string theory, though the suppression in the model is modest.


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