Density perturbations in multifield inflationary models

V. F. Mukhanov, Paul J. Steinhardt

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

We derive a closed-form, analytical expression for the spectrum of long-wavelength density perturbations in inflationary models with two (or more) inflaton degrees of freedom that is valid in the slow-roll approximation. We illustrate several classes of potentials for which this expression reduces to a simple, algebraic expression.

Original languageEnglish (US)
Pages (from-to)52-60
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume422
Issue number1-4
DOIs
StatePublished - Mar 12 1998

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Density perturbations in multifield inflationary models'. Together they form a unique fingerprint.

Cite this