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Paper   IPM / Physic / 16239
School of Physics
  Title:   Schrodinger field theory in curved spacetime: In-In formalism and three-point function for inflationary background
  Author(s): 
1.  A. Rostami
2.  J. T. Firouzjaee
  Status:   Published
  Journal: Int. J. Mod. Phys. D
  No.:  09
  Vol.:  27
  Year:  2018
  Pages:   1850097
  Supported by:  IPM
  Abstract:
We review the Schrödinger picture of field theory in curved spacetime and using this formalism, the power spectrum of massive non-interacting, minimally coupled scalars in a fixed de Sitter background is obtained. To calculate the N-point function in Schrödinger field theory, the ïn-in" formalism is extended in the Friedmann-Lemaître-Robertson-Walker (FLRW) universe. We compute the three-point function for primordial scalar field fluctuation in the single field inflation by this in-in formalism. The results are the same as the three-point function in the Heisenberg picture.

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