Double inflation in supergravity and the large scale structure

  title={Double inflation in supergravity and the large scale structure},
  author={Toshiyuki Kanazawa and Mitsuhiro Kawasaki and N. Sugiyama and Tsutomu T. Yanagida},
The cosmological implication of a double inflation model with hybrid $+$ new inflations in supergravity is studied. The hybrid inflation drives an inflaton for new inflation close to the origin through supergravity effects and new inflation naturally occurs. If the total e-fold number of new inflation is smaller than $\ensuremath{\sim}60,$ both inflations produce cosmologically relevant density fluctuations. Both cluster abundances and galaxy distributions provide strong constraints on the… CONTINUE READING

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