Combined local and equilateral non-Gaussianities from multifield DBI inflation

Journal of Cosmology and Astroparticle Physics

Volumn 2009, Issue 10, 2009, Pages

  Renaux Petel, Sébastien ^a  

^a UNIVERSITÉ PARIS DIDEROT   (France)

Author keywords

Ination; Non gaussianity; String theory and cosmology

Indexed keywords

EID: 70350653762     PISSN: 14757516     EISSN: 14757516     Source Type: Journal    
DOI: 10.1088/1475-7516/2009/10/012     Document Type: Article

References (105)

1. 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]
2. P. Creminelli and M. Zaldarriaga, 2004 Single field consistency relation for the 3-point function J. Cosmol. Astropart. Phys. JCAP10(2004)006 [astro-ph/0407059]
3. WMAP collaboration, E. Komatsu et al., 2009 Five-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: cosmological interpretation, Astrophys. J. Suppl. 180 330 [0803.0547]
4. D. Baumann, A. Dymarsky, I.R. Klebanov and L. McAllister, 2008 Towards an explicit model of D-brane inflation J. Cosmol. Astropart. Phys. JCAP01(2008)024 [0706.0360]
5. D. Baumann, A. Dymarsky, I.R. Klebanov, L. McAllister and P.J. Steinhardt, 2007 A delicate universe, Phys. Rev. Lett. 99 141601 [0705.3837]
6. E. Silverstein and D. Tong, 2004 Scalar speed limits and cosmology: acceleration from D-cceleration, Phys. Rev. D 70 103505 [hep-th/0310221]
7. M. Alishahiha, E. Silverstein and D. Tong, 2004 DBI in the sky, Phys. Rev. D 70 123505 [hep-th/0404084]
8. R. Bean, S.E. Shandera, S.H. Henry Tye and J. Xu, 2007 Comparing brane inflation to WMAP J. Cosmol. Astropart. Phys. JCAP05(2007)004 [hep-th/0702107]
9. H.V. Peiris, D. Baumann, B. Friedman and A. Cooray, 2007 Phenomenology of D-brane inflation with general speed of sound, Phys. Rev. D 76 103517 [0706.1240]
10. A. Kehagias and E. Kiritsis, 1999 Mirage cosmology J. High Energy Phys. JHEP11(1999)022 [hep-th/9910174]
11. D.A. Steer and M.F. Parry, 2002 Brane cosmology, varying speed of light and inflation in models with one or more extra dimensions, Int. J. Theor. Phys. 41 2255 [hep-th/0201121]
12. P. Brax and D.A. Steer, 2002 Remark on bouncing and cyclic branes in more than one extra dimension, Phys. Rev. D 66 061501
13. D. Easson, R. Gregory, G. Tasinato and I. Zavala, 2007 Cycling in the throat J. High Energy Phys. JHEP04(2007)026 [hep-th/0701252]
14. 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]
15. D. Langlois, S. Renaux-Petel, D.A. Steer and T. Tanaka, 2008 Primordial fluctuations and non-Gaussianities in multi-field DBI inflation, Phys. Rev. Lett. 101 061301 [0804.3139]
16. D. Langlois, S. Renaux-Petel, D.A. Steer and T. Tanaka, 2008 Primordial perturbations and non-Gaussianities in DBI and general multi-field inflation, Phys. Rev. D 78 063523 [0806.0336]
17. F. Arroja, S. Mizuno and K. Koyama, 2008 Non-Gaussianity from the bispectrum in general multiple field inflation J. Cosmol. Astropart. Phys. JCAP08(2008)015 [0806.0619]
18. D. Langlois, S. Renaux-Petel and D.A. Steer, 2009 Multi-field DBI inflation: introducing bulk forms and revisiting the gravitational wave constraints J. Cosmol. Astropart. Phys. JCAP04(2009)021 [0902.2941]
19. X. Gao and B. Hu, 2009 Primordial trispectrum from entropy perturbations in multifield DBI model J. Cosmol. Astropart. Phys. JCAP08(2009)012 [0903.1920]
20. X. Gao and F. Xu, 2009 Loop corrections to cosmological perturbations in multi-field inflationary models: I. Entropy loops J. Cosmol. Astropart. Phys. JCAP07(2009)042 [0905.0405]
21. S. Mizuno, F. Arroja, K. Koyama and T. Tanaka, 2009 Lorentz boost and non-Gaussianity in multi-field DBI-inflation, Phys. Rev. D 80 023530 [0905.4557]
22. X. Gao, M. Li and C. Lin, Primordial non-Gaussianities from the trispectra in multiple field inflationary models, [0906.1345]
23. D.H. Lyth and A. Riotto, 2006 Generating the curvature perturbation at the end of inflation in string theory, Phys. Rev. Lett. 97 121301 [astro-ph/0607326]
24. A. Sen, 2002 Tachyon matter J. High Energy Phys. JHEP07(2002)065 [hep-th/0203265]
25. H.-Y. Chen, J.-O. Gong and G. Shiu, 2008 Systematics of multi-field effects at the end of warped brane inflation J. High Energy Phys. JHEP09(2008)011 [0807.1927]
26. L. Leblond and S. Shandera, 2007 Cosmology of the tachyon in brane inflation J. Cosmol. Astropart. Phys. JCAP01(2007)009 [hep-th/0610321]
27. D. Baumann and L. McAllister, 2007 A microscopic limit on gravitational waves from D-brane inflation, Phys. Rev. D 75 123508 [hep-th/0610285]
28. J.E. Lidsey and I. Huston, 2007 Gravitational wave constraints on Dirac-Born-Infeld inflation J. Cosmol. Astropart. Phys. JCAP07(2007)002 [0705.0240]
29. S.B. Giddings, S. Kachru and J. Polchinski, 2002 Hierarchies from fluxes in string compactifications, Phys. Rev. D 66 106006 [hep-th/0105097]
30. I.R. Klebanov and M.J. Strassler, 2000 Supergravity and a confining gauge theory: duality cascades and χSB-resolution of naked singularities J. High Energy Phys. JHEP08(2000)052 [hep-th/0007191]
31. D. Baumann and L. McAllister, Advances in inflation in string theory, [0901.0265]
32. D. Langlois and S. Renaux-Petel, 2008 Perturbations in generalized multi-field inflation J. Cosmol. Astropart. Phys. JCAP04(2008)017 [0801.1085]
33. V.F. Mukhanov, H.A. Feldman and R.H. Brandenberger, 1992 Theory of cosmological perturbations, Phys. Rept. 215 203
34. D. Langlois, Inflation, quantum fluctuations and cosmological perturbations, [hep-th/0405053]
35. O. DeWolfe, S. Kachru and H.L. Verlinde, 2004 The giant inflaton J. High Energy Phys. JHEP05(2004)017 [hep-th/0403123]
36. O. DeWolfe, L. McAllister, G. Shiu and B. Underwood, 2007 D3-brane vacua in stabilized compactifications J. High Energy Phys. JHEP09(2007)121 [hep-th/0703088]
37. E. Pajer, 2008 Inflation at the tip J. Cosmol. Astropart. Phys. JCAP04(2008)031 [0802.2916]
38. F. Bernardeau and J.P. Uzan, 2002 Non-Gaussianity in multi-field inflation, Phys. Rev. D 66 103506 [hep-ph/0207295]
39. M. Sasaki, 2008 Multi-brid inflation and non-Gaussianity, Prog. Theor. Phys. 120 159 [0805.0974]
40. A. Naruko and M. Sasaki, 2009 Large non-Gaussianity from multi-brid inflation, Prog. Theor. Phys. 121 193 [0807.0180]
41. C.T. Byrnes, K.-Y. Choi and L.M.H. Hall, 2009 Large non-Gaussianity from two-component hybrid inflation J. Cosmol. Astropart. Phys. JCAP02(2009)017 [0812.0807]
42. Q.-G. Huang, 2009 The trispectrum in the multi-brid inflation J. Cosmol. Astropart. Phys. JCAP05(2009)005 [0903.1542]
43. A.A. Starobinsky, 1985 Multicomponent de Sitter (inflationary) stages and the generation of perturbations JETP Lett. 42 152
44. A.A. Starobinsky, 1985 Pisma Zh. Eksp. Teor. Fiz. 42 124
45. 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]
46. M. Sasaki and T. Tanaka, 1998 Super-horizon scale dynamics of multi-scalar inflation, Prog. Theor. Phys. 99 763 [gr-qc/9801017]
47. 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]
48. D.H. Lyth and Y. Rodriguez, 2005 The inflationary prediction for primordial non-Gaussianity, Phys. Rev. Lett. 95 121302 [astro-ph/0504045]
49. D. Wands, K.A. Malik, D.H. Lyth and A.R. Liddle, 2000 A new approach to the evolution of cosmological perturbations on large scales, Phys. Rev. D 62 043527 [astro-ph/0003278]
50. D.H. Lyth, 2005 Generating the curvature perturbation at the end of inflation J. Cosmol. Astropart. Phys. JCAP11(2005)006 [astro-ph/0510443]
51. N. Barnaby and J.M. Cline, 2007 Non-Gaussianity from tachyonic preheating in hybrid inflation, Phys. Rev. D 75 086004 [astro-ph/0611750]
52. K. Enqvist, A. Jokinen, A. Mazumdar, T. Multamaki and A. Vaihkonen, 2005 Cosmological constraints on string scale and coupling arising from tachyonic instability J. High Energy Phys. JHEP08(2005)084 [hep-th/0502185]
53. C.T. Byrnes, M. Sasaki and D. Wands, 2006 The primordial trispectrum from inflation, Phys. Rev. D 74 123519 [astro-ph/0611075]
54. 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]
55. D. Seery and J.E. Lidsey, 2005 Primordial non-Gaussianities from multiple-field inflation J. Cosmol. Astropart. Phys. JCAP09(2005)011 [astro-ph/0506056]
56. 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]
57. X. Chen, 2005 Running non-Gaussianities in DBI inflation, Phys. Rev. D 72 123518 [astro-ph/0507053]
58. D. Wands, N. Bartolo, S. Matarrese and A. Riotto, 2002 An observational test of two-field inflation, Phys. Rev. D 66 043520 [astro-ph/0205253]
59. S. Kecskemeti, J. Maiden, G. Shiu and B. Underwood, 2006 DBI inflation in the tip region of a warped throat J. High Energy Phys. JHEP09(2006)076 [hep-th/0605189]
60. L.E. Allen, S. Gupta and D. Wands, 2006 Non-Gaussian perturbations from multi-field inflation J. Cosmol. Astropart. Phys. JCAP01(2006)006 [astro-ph/0509719]
61. Q.-G. Huang, 2009 A geometric description of the non-Gaussianity generated at the end of multi-field inflation J. Cosmol. Astropart. Phys. JCAP06(2009)035 [0904.2649]
62. F. Bernardeau and J.-P. Uzan, 2003 Inflationary models inducing non-Gaussian metric fluctuations, Phys. Rev. D 67 121301 [astro-ph/0209330]
63. G. Dvali, A. Gruzinov and M. Zaldarriaga, 2004 A new mechanism for generating density perturbations from inflation, Phys. Rev. D 69 023505 [astro-ph/0303591]
64. L. Kofman, Probing string theory with modulated cosmological fluctuations, [astro-ph/0303614]
65. M. Zaldarriaga, 2004 Non-Gaussianities in models with a varying inflaton decay rate, Phys. Rev. D 69 043508 [astro-ph/0306006]
66. F. Bernardeau, L. Kofman and J.-P. Uzan, 2004 Modulated fluctuations from hybrid inflation, Phys. Rev. D 70 083004 [astro-ph/0403315]
67. M.P. Salem, 2005 On the generation of density perturbations at the end of inflation, Phys. Rev. D 72 123516 [astro-ph/0511146]
68. L. Alabidi and D. Lyth, 2006 Curvature perturbation from symmetry breaking the end of inflation J. Cosmol. Astropart. Phys. JCAP08(2006)006 [astro-ph/0604569]
69. F. Bernardeau and T. Brunier, 2007 Non-Gaussianities in extended D-term inflation, Phys. Rev. D 76 043526 [0705.2501]
70. B. Dutta, L. Leblond and J. Kumar, 2008 Tachyon mediated non-Gaussianity, Phys. Rev. D 78 083522 [0805.1229]
71. D. Babich, P. Creminelli and M. Zaldarriaga, 2004 The shape of non-Gaussianities J. Cosmol. Astropart. Phys. JCAP08(2004)009 [astro-ph/0405356]
72. M. LoVerde, A. Miller, S. Shandera and L. Verde, 2008 Effects of scale-dependent non-Gaussianity on cosmological structures J. Cosmol. Astropart. Phys. JCAP04(2008)014 [0711.4126]
73. E. Sefusatti, M. Liguori, A.P.S. Yadav, M.G. Jackson and E. Pajer, Constraining running non-Gaussianity, [0906.0232]
74. S. Bird, H.V. Peiris and D. Baumann, 2009 Brane inflation and the overshoot problem, Phys. Rev. D 80 023534 [0905.2412]
75. A.R. Frey, A. Mazumdar and R.C. Myers, 2006 Stringy effects during inflation and reheating, Phys. Rev. D 73 026003 [hep-th/0508139]
76. N. Kogo and E. Komatsu, 2006 Angular trispectrum of CMB temperature anisotropy from primordial non-Gaussianity with the full radiation transfer function, Phys. Rev. D 73 083007 [astro-ph/0602099]
77. A. Cooray, C. Li and A. Melchiorri, 2008 The trispectrum of 21 cm background anisotropies as a probe of primordial non-Gaussianity, Phys. Rev. D 77 103506 [0801.3463]
78. D. Jeong and E. Komatsu, 2009 Primordial non-Gaussianity, scale-dependent bias and the bispectrum of galaxies, Astrophys. J. 703 1230 [0904.0497]
79. X. Chen, B. Hu, M.-X. Huang, G. Shiu and Y. Wang, 2009 Large primordial trispectra in general single field inflation J. Cosmol. Astropart. Phys. JCAP08(2009)008 [0905.3494]
80. T. Okamoto and W. Hu, 2002 The angular trispectra of CMB temperature and polarization, Phys. Rev. D 66 063008 [astro-ph/0206155]
81. M. Sasaki, J. Valiviita and D. Wands, 2006 Non-Gaussianity of the primordial perturbation in the curvaton model, Phys. Rev. D 74 103003 [astro-ph/0607627]
82. J.-L. Lehners and S. Renaux-Petel, 2009 Multifield cosmological perturbations at third order and the ekpyrotic trispectrum, Phys. Rev. D 80 063503 [0906.0530]
83. C.T. Byrnes and G. Tasinato, 2009 Non-Gaussianity beyond slow roll in multi-field inflation J. Cosmol. Astropart. Phys. JCAP08(2009)016 [0906.0767]
84. D. Seery, M.S. Sloth and F. Vernizzi, 2009 Inflationary trispectrum from graviton exchange J. Cosmol. Astropart. Phys. JCAP03(2009)018 [0811.3934]
85. F. Arroja, S. Mizuno, K. Koyama and T. Tanaka, 2009 On the full trispectrum in single field DBI-inflation, Phys. Rev. D 80 043527 [0905.3641]
86. X. Chen, M.-X. Huang and G. Shiu, 2006 The inflationary trispectrum for models with large non-Gaussianities, Phys. Rev. D 74 121301 [hep-th/0610235]
87. S. Mizuno, F. Arroja and K. Koyama, On the full trispectrum in multi-field DBI inflation, [0907.2439]
88. C. Cheung, P. Creminelli, A.L. Fitzpatrick, J. Kaplan and L. Senatore, 2008 The effective field theory of inflation J. High Energy Phys. JHEP03(2008)014 [0709.0293]
89. L. Leblond and S. Shandera, 2008 Simple bounds from the perturbative regime of inflation J. Cosmol. Astropart. Phys. JCAP08(2008)007 [0802.2290]
90. 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]
91. L. Boubekeur and D.H. Lyth, 2006 Detecting a small perturbation through its non-Gaussianity, Phys. Rev. D 73 021301 [astro-ph/0504046]
92. H.R.S. Cogollo, Y. Rodriguez and C.A. Valenzuela-Toledo, 2008 On the issue of the ζ series convergence and loop corrections in the generation of observable primordial non-Gaussianity in slow-roll inflation. Part I: the bispectrum J. Cosmol. Astropart. Phys. JCAP08(2008)029 [0806.1546]
93. Y. Rodriguez and C.A. Valenzuela-Toledo, On the issue of the ζ series convergence and loop corrections in the generation of observable primordial non-Gaussianity in slow-roll inflation. Part II: the trispectrum, [0811.4092]
94. D.H. Lyth, 2007 The curvature perturbation in a box J. Cosmol. Astropart. Phys. JCAP12(2007)016 [0707.0361]
95. I. Zaballa, Y. Rodriguez and D.H. Lyth, 2006 Higher order contributions to the primordial non-Gaussianity J. Cosmol. Astropart. Phys. JCAP06(2006)013 [astro-ph/0603534]
96. X. Chen, 2005 Multi-throat brane inflation, Phys. Rev. D 71 063506 [hep-th/0408084]
97. X. Chen, 2005 Inflation from warped space J. High Energy Phys. JHEP08(2005)045 [hep-th/0501184]
98. R. Bean, X. Chen, H. Peiris and J. Xu, 2008 Comparing infrared Dirac-Born-Infeld brane inflation to observations, Phys. Rev. D 77 023527 [0710.1812]
99. X. Chen, S. Sarangi, S.H. Henry Tye and J. Xu, 2006 Is brane inflation eternal? J. Cosmol. Astropart. Phys. JCAP11(2006)015 [hep-th/0608082]
100. J. Khoury and F. Piazza, 2009 Rapidly-varying speed of sound, scale invariance and non-Gaussian signatures J. Cosmol. Astropart. Phys. JCAP07(2009)026 [0811.3633]
101. S. Renaux-Petel and G. Tasinato, 2009 Nonlinear perturbations of cosmological scalar fields with non-standard kinetic terms J. Cosmol. Astropart. Phys. JCAP01(2009)012 [0810.2405]
102. D. Langlois and F. Vernizzi, 2007 Nonlinear perturbations of cosmological scalar fields J. Cosmol. Astropart. Phys. JCAP02(2007)017 [astro-ph/0610064]
103. Y.-F. Cai and W. Xue, 2009 N-flation from multiple DBI type actions, Phys. Lett. B 680 395 [0809.4134]
104. Y.-F. Cai and H.-Y. Xia, 2009 Inflation with multiple sound speeds: a model of multiple DBI type actions and non-Gaussianities, Phys. Lett. B 677 226 [0904.0062]
105. L. Senatore, K.M. Smith and M. Zaldarriaga, Non-Gaussianities in single field inflation and their optimal limits from the WMAP 5-year data, [0905.3746]