Deducing cosmological observables from the S matrix

Shun-Pei Miao, T. Prokopec, R. P. Woodard

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We study one loop quantum gravitational corrections to the long range force induced by the exchange of a massless scalar between two massive scalars. The various diagrams contributing to the flat space S matrix are evaluated in a general covariant gauge, and we show that dependence on the gauge parameters cancels at a point considerably before forming the full S matrix, which is unobservable in cosmology. It is possible to interpret our computation as a solution to the effective field equations - which could be done even in cosmology - but taking account of quantum gravitational corrections from the source and from the observer.

Original languageEnglish
Article number104029
JournalPhysical Review D
Volume96
Issue number10
DOIs
Publication statusPublished - 2017 Jan 1

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cosmology
scalars
matrices
diagrams

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Miao, Shun-Pei ; Prokopec, T. ; Woodard, R. P. / Deducing cosmological observables from the S matrix. In: Physical Review D. 2017 ; Vol. 96, No. 10.
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Deducing cosmological observables from the S matrix. / Miao, Shun-Pei; Prokopec, T.; Woodard, R. P.

In: Physical Review D, Vol. 96, No. 10, 104029, 01.01.2017.

Research output: Contribution to journalArticle

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