Anisotropic bispectrum of curvature perturbations from primordial non-abelian vector fields

Journal of Cosmology and Astroparticle Physics

Volumn 2009, Issue 10, 2009, Pages

  Bartolo, Nicola ^a,b   Dimastrogiovanni, Emanuela ^a,b   Matarrese, Sabino ^a,b   Riotto, Antonio ^b,c  

^a UNIVERSITY OF PADOVA   (Italy)

^b SEZIONE DI PADOVA   (Italy)

^c CERN   (Switzerland)

Author keywords

Cosmological perturbation theory; Inflation; Non gaussianity

Indexed keywords

EID: 70350641849     PISSN: 14757516     EISSN: 14757516     Source Type: Journal    
DOI: 10.1088/1475-7516/2009/10/015     Document Type: Article

References (57)

1. For a review see D.H. Lyth and A. Riotto, 1999 Particle physics models of inflation and the cosmological density perturbation, Phys. Rept. 314 1 [hep-ph/9807278]
2. G.F. Smoot et al., 1992 Structure in the COBE differential microwave radiometer first year maps, Astrophys. J. 396 L1
3. C.L. Bennett et al., 1996 4-year COBE DMR cosmic microwave background observations: maps and basic results, Astrophys. J. 464 L1 [astro-ph/9601067]
4. K.M. Gorski et al., 1996 Power spectrum of primordial inhomogeneity determined from the 4-year COBE DMR sky maps, Astrophys. J. 464 L11 [astro-ph/9601063]
5. WMAP collaboration, D.N. Spergel et al., 2007 Wilkinson Microwave Anisotropy Probe (WMAP) three year results: implications for cosmology, Astrophys. J. Suppl. 170 377 [astro-ph/0603449]
6. WMAP collaboration, E. Komatsu et al., 2009 Five-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: cosmological interpretation, Astrophys. J. Suppl. 180 330 [0803.0547]
7. A.D. Linde, 1985 Generation of isothermal density perturbations in the inflationary universe, Phys. Lett. B 158 375
8. L.A. Kofman, 1986 What initial perturbations may be generated in inflationary cosmological models, Phys. Lett. B 173 400
9. D. Polarski and A.A. Starobinsky, 1994 Isocurvature perturbations in multiple inflationary models, Phys. Rev. D 50 6123 [astro-ph/9404061]
10. J. Garcia-Bellido and D. Wands, 1996 Metric perturbations in two-field inflation, Phys. Rev. D 53 5437 [astro-ph/9511029]
11. V.F. Mukhanov and P.J. Steinhardt, 1998 Density perturbations in multifield inflationary models, Phys. Lett. B 422 52 [astro-ph/9710038]
12. D. Langlois, 1999 Correlated adiabatic and isocurvature perturbations from double inflation, Phys. Rev. D 59 123512 [astro-ph/9906080]
13. C. Gordon, D. Wands, B.A. Bassett and R. Maartens, 2001 Adiabatic and entropy perturbations from inflation, Phys. Rev. D 63 023506 [astro-ph/0009131]
14. S. Mollerach, 1990 Isocurvature baryon perturbations and inflation, Phys. Rev. D 42 313
15. K. Enqvist and M.S. Sloth, 2002 Adiabatic CMB perturbations in pre big bang string cosmology, Nucl. Phys. B 626 395 [hep-ph/0109214]
16. D.H. Lyth and D. Wands, 2002 Generating the curvature perturbation without an inflaton, Phys. Lett. B 524 5 [hep-ph/0110002]
17. D.H. Lyth, C. Ungarelli and D. Wands, 2003 The primordial density perturbation in the curvaton scenario, Phys. Rev. D 67 023503 [astro-ph/0208055]
18. T. Moroi and T. Takahashi, 2001 Effects of cosmological moduli fields on cosmic microwave background, Phys. Lett. B 522 215 [Erratum ibid B 539 (2002) 303] [hep-ph/0110096]
19. N. Bartolo, S. Matarrese and A. Riotto, 2004 On non-Gaussianity in the curvaton scenario, Phys. Rev. D 69 043503 [hep-ph/0309033]
20. J. Garriga and V.F. Mukhanov, 1999 Perturbations in k-inflation, Phys. Lett. B 458 219 [hep-th/9904176]
21. C. Armendariz-Picon, T. Damour and V.F. Mukhanov, 1999 k-inflation, Phys. Lett. B 458 209 [hep-th/9904075]
22. M. Alishahiha, E. Silverstein and D. Tong, 2004 DBI in the sky, Phys. Rev. D 70 123505 [hep-th/0404084]
23. X. Chen, M.-X. Huang, S. Kachru and G. Shiu, 2007 Observational signatures and non-Gaussianities of general single field inflation J. Cosmol. Astropart. Phys. JCAP01(2007)002 [hep-th/0605045]
24. N. Arkani-Hamed, P. Creminelli, S. Mukohyama and M. Zaldarriaga, 2004 Ghost inflation J. Cosmol. Astropart. Phys. JCAP04(2004)001 [hep-th/0312100]
25. See Planck homepage, http://planck.esa.int/
26. N. Bartolo, E. Komatsu, S. Matarrese and A. Riotto, 2004 Non-Gaussianity from inflation: theory and observations, Phys. Rept. 402 103 [astro-ph/0406398]
27. E. Komatsu et al., Non-Gaussianity as a probe of the physics of the primordial universe and the astrophysics of the low redshift universe, [0902.4759]
28. V. Acquaviva, N. Bartolo, S. Matarrese and A. Riotto, 2003 Second-order cosmological perturbations from inflation, Nucl. Phys. B 667 119 [astro-ph/0209156]
29. J.M. Maldacena, 2003 Non-Gaussian features of primordial fluctuations in single field inflationary models J. High Energy Phys. JHEP05(2003)013 [astro-ph/0210603]
30. D. Seery, J.E. Lidsey and M.S. Sloth, 2007 The inflationary trispectrum J. Cosmol. Astropart. Phys. JCAP01(2007)027 [astro-ph/0610210]
31. K. Dimopoulos, 2006 Can a vector field be responsible for the curvature perturbation in the universe?, Phys. Rev. D 74 083502 [hep-ph/0607229]
32. L. Ackerman, S.M. Carroll and M.B. Wise, 2007 Imprints of a primordial preferred direction on the microwave background, Phys. Rev. D 75 083502 [astro-ph/0701357]
33. A. Golovnev, V. Mukhanov and V. Vanchurin, 2008 Vector inflation J. Cosmol. Astropart. Phys. JCAP06(2008)009 [0802.2068]
34. K. Dimopoulos and M. Karciauskas, 2008 Non-minimally coupled vector curvaton J. High Energy Phys. JHEP07(2008)119 [0803.3041]
35. S. Yokoyama and J. Soda, 2008 Primordial statistical anisotropy generated at the end of inflation J. Cosmol. Astropart. Phys. JCAP08(2008)005 [0805.4265]
36. K. Dimopoulos, M. Karciauskas, D.H. Lyth and Y. Rodriguez, 2009 Statistical anisotropy of the curvature perturbation from vector field perturbations J. Cosmol. Astropart. Phys. JCAP05(2009)013 [0809.1055]
37. B. Himmetoglu, C.R. Contaldi and M. Peloso, 2009 Instability of anisotropic cosmological solutions supported by vector fields, Phys. Rev. Lett. 102 111301 [0809.2779]
38. M. Karciauskas, K. Dimopoulos and D.H. Lyth, 2009 Anisotropic non-Gaussianity from vector field perturbations, Phys. Rev. D 80 023509 [0812.0264]
39. B. Himmetoglu, C.R. Contaldi and M. Peloso, 2009 Instability of the ACW model and problems with massive vectors during inflation, Phys. Rev. D 79 063517 [0812.1231]
40. A. Golovnev and V. Vanchurin, 2009 Cosmological perturbations from vector inflation, Phys. Rev. D 79 103524 [0903.2977]
41. N.E. Groeneboom and H.K. Eriksen, 2009 Bayesian analysis of sparse anisotropic universe models and application to the 5-yr WMAP data, Astrophys. J. 690 1807 [0807.2242]
42. A.A. Starobinsky, 1985 Multicomponent de Sitter (inflationary) stages and the generation of perturbations JETP Lett. 42 152
43. A.A. Starobinsky, 1985 Pisma Zh. Eksp. Teor. Fiz. 42 124
44. M. Sasaki and E.D. Stewart, 1996 A general analytic formula for the spectral index of the density perturbations produced during inflation, Prog. Theor. Phys. 95 71 [astro-ph/9507001]
45. D.H. Lyth, K.A. Malik and M. Sasaki, 2005 A general proof of the conservation of the curvature perturbation J. Cosmol. Astropart. Phys. JCAP05(2005)004 [astro-ph/0411220]
46. D.H. Lyth and Y. Rodriguez, 2005 The inflationary prediction for primordial non-Gaussianity, Phys. Rev. Lett. 95 121302 [astro-ph/0504045]
47. J.S. Schwinger, 1961 Brownian motion of a quantum oscillator, J. Math. Phys. 2 407
48. E. Calzetta and B.L. Hu, 1987 Closed time path functional formalism in curved space-time: application to cosmological back reaction problems, Phys. Rev. D 35 495
49. R.D. Jordan, 1986 Effective field equations for expectation values, Phys. Rev. D 33 444
50. C.T. Byrnes, K. Koyama, M. Sasaki and D. Wands, 2007 Diagrammatic approach to non-Gaussianity from inflation J. Cosmol. Astropart. Phys. JCAP11(2007)027 [0705.4096]
51. J.R. Fergusson and E.P.S. Shellard, 2007 Primordial non-Gaussianity and the CMB bispectrum, Phys. Rev. D 76 083523 [astro-ph/0612713]
52. J.R. Fergusson and E.P.S. Shellard, 2009 The shape of primordial non-Gaussianity and the CMB bispectrum, Phys. Rev. D 80 043510 [0812.3413]
53. D. Babich, P. Creminelli and M. Zaldarriaga, 2004 The shape of non-Gaussianities J. Cosmol. Astropart. Phys. JCAP08(2004)009 [astro-ph/0405356]
54. F. Vernizzi and D. Wands, 2006 Non-Gaussianities in two-field inflation J. Cosmol. Astropart. Phys. JCAP05(2006)019 [astro-ph/0603799]
55. N. Bartolo, E. Dimastrogiovanni, S. Matarrese and A. Riotto, Anisotropic Trispectrum of Curvature Perturbations Induced by Primordial Non-Abelian Vector Fields, [0909.5621]
56. K. Dimopoulos, 2007 Supergravity inspired vector curvaton, Phys. Rev. D 76 063506 [0705.3334]
57. K. Dimopoulos, M. Karciauskas and J.M. Wagstaff, Vector curvaton with varying kinetic function, [0907.1838]