The Cosmological Moduli Problem , Supersymmetry Breaking , and Stability in Postinflationary Cos

  title={The Cosmological Moduli Problem , Supersymmetry Breaking , and Stability in Postinflationary Cos},
  author={Paul J. Steinhardt},
We review scenarios that have been proposed to solve the cosmological problem caused by moduli in string theory, the Postmodern Polonyi Problem (PPP). In particular, we discuss the difficulties encountered by the apparently " trivial " solution of this problem, in which moduli masses are assumed to arise from nonperturbative, SUSY preserving, dynamics at a scale higher than that of SUSY breaking. This suggests a powerful cosmological vacuum selection principle in superstring theory. However, we… CONTINUE READING

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