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Influence of heavy modes on perturbations in multiple field inflation · Around

2012

Influence of heavy modes on perturbations in multiple field inflation

Gao, Xian, Langlois, David, Mizuno, Shuntaro

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We investigate linear cosmological perturbations in multiple field inflationary models where some of the directions are light while others are heavy (with respect to the Hubble parameter).

By integrating out the massive degrees of freedom, we determine the multi-dimensional effective theory for the light degrees of freedom and give explicitly the propagation matrix that replaces the effective sound speed of the one-dimensional case.
We then examine in detail the consequences of a sudden turn along the inflationary trajectory, in particular the possible breakdown of the low energy effective theory in case the heavy modes are excited.
Resorting to a new basis in field space, instead of the usual adiabatic/entropic basis, we study the evolution of the perturbations during the turn.

Built on

M. Abramowitz and I. A. Stegun, eds. (1972), Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables
1972
Earlier work this paper cites.
C. Gordon, D. Wands, B. A. Bassett and R. Maartens, Phys. Rev. D 63
2001
Earlier work this paper cites.
S. Groot Nibbelink and B. J. W. van Tent, Class. Quant. Grav. 19
2002
Earlier work this paper cites.
J. Martin and C. Ringeval, JCAP 0501
2005
Earlier work this paper cites.
D. Langlois and F. Vernizzi, JCAP 0702
2007
Earlier work this paper cites.
D. Langlois and S. Renaux-Petel, JCAP 0804
Original
2008
Earlier work this paper cites.
A. J. Tolley and M. Wyman, Phys. Rev. D 81
Original
2010
Earlier work this paper cites.

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