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Volume Modulus Inflation and the Gravitino Mass Problem

Abstract:

The Hubble constant during the last stages of inflation in a broad class of models based on the KKLT mechanism should be smaller than the gravitino mass, H <~ m_{3/2}. We point out that in the models with large volume of compactification the corresponding constraint typically is even stronger, H <~ m_{3/2}^{3/2}, in Planck units. In order to address this problem, we propose a class of models with large volume of compactification where inflation may occur exponentially far away from the ...

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Journal:
JCAP
Volume:
0809
Issue:
09
Pages:
011
Publication date:
2008-06-04
DOI:
EISSN:
1475-7516
URN:
uuid:aef33911-37f9-4796-9289-1abee3975e84
Source identifiers:
186095
Local pid:
pubs:186095
Keywords:

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