Non-Gaussianity of general multiple-field inflationary models

International Journal of Modern Physics D

Volumn 15, Issue 8, 2006, Pages 1259-1265

  Sun, Cheng Yi ^a   Zhang, De Hai ^a  

^a UNIVERSITY OF CHINESE ACADEMY OF SCIENCES   (China)

Author keywords

Non Gaussian; Non linear parameter; Non trivial metric

Indexed keywords

EID: 33750164104     PISSN: 02182718     EISSN: None     Source Type: Journal    
DOI: 10.1142/S0218271806008887     Document Type: Article

References (19)

1. A. Liddle and A. Riotto, Cosmological Inflation and Large-Scale Structure (Cambridge University Press, Cambridge, 2000).
2. C. L. Bennett et al., First year Wilkinson microwave antisotropy probe (WMAP) observations: Determination of cosmological prameters, astro-ph/0302209.
3. D. H. Lyth and A. Riotto, Phys. Rep. 314, 1-146 (1999) [hep-ph/9807278].
4. N. Bartolo et al., Non-gaussianity from inflation: theory and observations, Phys. Rep. 402, 103-266 (2004) [astro-ph/0406398].
5. J. Maldacena, Non-Gaussian features of primordial fluctuations in single field inflationary models, J. High Energy Phys. 0305, 013 (2003) [astro-ph/0210603].
6. G. I. Rigopoulos et al., Non-linear perturbations in multiple-field inflation [astroph/0504508].
7. D. Seery and J. E. Lidsey, Primordial non-gaussianities from multiple-field inflation, J. Cosmol. Astropart. Phys. 0509, 011 (2005) [astro-ph/0506056].
8. G. I. Rigopoulos et al., Large non-Gaussianity in multiple-field inflation [astroph/0506704].
9. L. E. Allen et al., Non-Gaussian perturbations from multi-field inflation [astroph/0509719].
10. D. H. Lyth and Y. Rodriguez, The inflationary prediction for primordial non-gaussianity, Phys. Rev. Lett. 95, 121302 (2005) [astro-ph/0504045].
11. L. Boubekeur and D. H. Lyth, Detecting a small perturbation through its nonGaussianity [astro-ph/0504046].
12. D. H. Lyth et al., A general proof of the conservation of the curvature perturbation, J. Cosmol. Astropart. Phys. 0505, 004 (2005) [astro-ph/0411220].
13. G. I. Rigopoulos and E. P. S. Shellard, The separate universe approach and the evolution of nonlinear superhorizon cosmological perturbations, Phys. Rev. D 68, 123518 (2003) [astro-ph/0306620].
14. M. Sasaki and E. D. Stewart, A general analytic formula for the spectral index of the density perturbations produced during inflation, Prog. Theor. Phys. 95, 71-78 (1996) [astro-ph/9507001].
15. A. A. Starobinsky and J. Yokoyama, Density fluctuations in Brans-Dicke inflation [gr-qc/9502002].
16. D. H. Lyth and I. Zaballa, A bound concerning primordial non-Gaussianity, J. Cosmol. Astropart Phys. 10, 005 (2005) [astro-ph/0507608].
17. A. A. Starobinsky, Phys. Lett. B 117, 175 (1982).
18. A. A. Starobinsky, J. Exp. Theor. Phys. 42, 152 (1985).
19. J. Garcia-Bellido and D. Wands, Phys. Rev. D 53, 5437 (1996) [astro-ph/9511029].