Loading...

Schrödinger field theory in curved spacetime: In-in formalism and three-point function for the inflationary background

Rostami, A ; Sharif University of Technology | 2018

104 Viewed
  1. Type of Document: Article
  2. DOI: 10.1142/S0218271818500979
  3. Publisher: World Scientific Publishing Co. Pte Ltd , 2018
  4. Abstract:
  5. We review the Schrödinger picture of field theory in curved spacetime and using this formalism, the power spectrum of massive noninteracting, minimally coupled scalars in a fixed de Sitter background is obtained. To calculate the N-point function in Schrödinger field theory, the in-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. © 2018 World Scientific Publishing Company
  6. Keywords:
  7. Interaction picture ; N -point function ; Schrödinger field theory
  8. Source: International Journal of Modern Physics D ; Volume 27, Issue 9 , 2018 ; 02182718 (ISSN)
  9. URL: https://www.worldscientific.com/doi/abs/10.1142/S0218271818500979