Gravitational waves generated by second order effects during inflation

Details Gravitational waves generated by second order effects during inflation Gravitational waves generated by second order effects during inflation

2006-12-18

arxiv.org/abs/gr-qc/0612108v2

JCAP 0704:003,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages. v2 has minor changes to match published version

Scientific paper

10.1088/1475-7516/2007/04/003

The generation of gravitational waves during inflation due to the non-linear
coupling of scalar and tensor modes is discussed. Two methods describing
gravitational wave perturbations are used and compared: a covariant and local
approach, as well as a metric-based analysis based on the Bardeen formalism. An
application to slow-roll inflation is also described.

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