A first-quantized formalism for cosmological particle production

Alex Hamilton, Daniel Kabat, Maulik Parikh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Given suitable boundary conditions, we show that the initial state and the amount of particle production in a cosmological spacetime are encoded in the Feynman propagator. The propagator can be represented in terms of a particle path integral in an auxiliary spacetime, and particle production can be extracted from the auxiliary propagator. This provides a first-quantized formalism for computing cosmological particle production which, unlike conventional Bogolubov transformations, may be amenable to a string-theoretic generalization.

Original languageEnglish (US)
Pages (from-to)565-577
Number of pages13
JournalJournal of High Energy Physics
Volume8
Issue number7
StatePublished - Jul 1 2004
Externally publishedYes

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particle production
formalism
propagation
strings
boundary conditions

Keywords

  • Bosonic Strings
  • Cosmology of Theories beyond the SM
  • Space-Time Symmetries

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

A first-quantized formalism for cosmological particle production. / Hamilton, Alex; Kabat, Daniel; Parikh, Maulik.

In: Journal of High Energy Physics, Vol. 8, No. 7, 01.07.2004, p. 565-577.

Research output: Contribution to journalArticle

Hamilton, Alex ; Kabat, Daniel ; Parikh, Maulik. / A first-quantized formalism for cosmological particle production. In: Journal of High Energy Physics. 2004 ; Vol. 8, No. 7. pp. 565-577.
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