Conformal invariance of curvature perturbation
Jul, 2011
15 pages
Published in:
- JCAP 09 (2011) 023
e-Print:
- 1107.1840 [gr-qc]
Report number:
- CERN-PH-TH-2011-123,
- YITP-11-57
View in:
Citations per year
Abstract: (arXiv)
We show that in the single component situation all perturbation variables in the comoving gauge are conformally invariant to all perturbation orders. Generally we identify a special time slicing, the uniform-conformal transformation slicing, where all perturbations are again conformally invariant to all perturbation orders. We apply this result to the delta N formalism, and show its conformal invariance.Note:
- 15 pages, 1 figure
- invariance: conformal
- curvature: perturbation
- space-time: foliation
- transformation: conformal
- field theory: scalar
References(19)
Figures(1)