Abstract
We present the expressions of the three- and four-point correlation functions of a self-interacting light scalar field in a de Sitter spacetime at tree order, respectively, for a cubic and a quartic potential. Exact expressions are derived and their limiting behavior on superhorizon scales are presented. Their essential features are shown to be similar to those obtained in a classical approach.
| Original language | English |
|---|---|
| Pages (from-to) | 6 |
| Number of pages | 1 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 69 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Jan 2004 |
| Externally published | Yes |
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