Problems of the Supergravity Approximation to String Inflation

  • Horaţiu NăstaseEmail author
Part of the Fundamental Theories of Physics book series (FTPH, volume 197)


Because string theory itself is not very calculable, there are few truly stringy models of cosmology. Therefore, one mostly considers the low energy limit of string theory, supergravity, as an effective field theory, and in this chapter we want to note the problems we encounter when we try to obtain inflation in this effective field theory. As usual, for phenomenological reasons we only consider \(\mathcal{N}=1\) supersymmetry, considering that the rest has been lost at a high scale. In \(\mathcal{N}=1\) supersymmetry, besides the supergravity multiplet, we have the chiral multiplet \(\Phi \) and the vector multiplet \(V^a\).

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Instituto de Física Teórica, UNESPSão PauloBrazil

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