Long-Wavelength Modes of Cosmological Scalar Fields

Details Long-Wavelength Modes of Cosmological Scalar Fields Long-Wavelength Modes of Cosmological Scalar Fields

2005-10-02

arxiv.org/abs/hep-ph/0510009v2

Phys.Rev. D73 (2006) 123514

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 10 figures, several stylistic improvements

Scientific paper

10.1103/PhysRevD.73.123514

We give a numerical analysis of long-wavelength modes in the WKB
approximation of cosmological scalar fields coupled to gravity via
$\xi\phi^{2}R$. Massless fields are coupled conformally at $\xi=1/6$.
Conformality can be preserved for fields of nonzero mass by shifting $\xi$. We
discuss implications for density perturbations.

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