Primordial curvature perturbation during and at the end of multi-field inflation - INSPIRE

DataBETA

Primordial curvature perturbation during and at the end of multi-field inflation

Ki-Young Choi
(
- APCTP, Pohang and
- POSTECH
)
,
Soo A. Kim
(
- APCTP, Pohang
)
,
Bumseok Kyae
(
- Pusan Natl. U.
)

Feb, 2012

20 pages

Published in:

Nucl.Phys.B 861 (2012) 271-289

Published: Aug 21, 2012

e-Print:

1202.0089 [astro-ph.CO]

DOI:

10.1016/j.nuclphysb.2012.04.004

Report number:

APCTP-PRE2012-002,
PNUTP-12-A02

View in:

ADS Abstract Service

reference search18 citations

Citations per year

Abstract: (arXiv)

We study the generation of the primordial curvature perturbation in multi-field inflation. Considering both the evolution of the perturbation during inflation and the effects generated at the end of inflation, we present a general formula for the curvature perturbation. We provide the analytic expressions of the power spectrum, spectral tilt and non-Gaussianity for the separable potentials of two inflaton scalars, and apply them to some specific models.

Note:

20 pages

Inflation
Cosmological perturbation theory
Non-Gaussianity
curvature: perturbation
curvature: primordial
separable potential
non-Gaussianity
power spectrum: scalar
inflation: multiple field
bispectrum

References(61)

Figures(0)

[1]

Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

WMAP

Collaboration

•

E. Komatsu
(
- Texas U.
)

et al.

- Astrophys.J.Suppl. 192 (2011) 18
•
e-Print:
- 1001.4538
•
DOI:
- 10.1088/0067-0049/192/2/18

[2]

Spectra of perturbations produced by double inflation with an intermediate matter dominated stage

David Polarski
(
- Zurich, ETH and
- Meudon Observ. and
- Tours U.
)
,
Alexei A. Starobinsky
(
- Zurich, ETH and
- Landau Inst.
)

- Nucl.Phys.B 385 (1992) 623-650
•
DOI:
- 10.1016/0550-3213(92)90062-G

[3]

Inflation dynamics and reheating

Bruce A. Bassett
(
- Kyoto U. and
- Portsmouth U., ICG
)
,
Shinji Tsujikawa
(
- Gunma Coll. Tech.
)
,
David Wands
(
- Portsmouth U., ICG
)

- Rev.Mod.Phys. 78 (2006) 537-589
•
e-Print:
- astro-ph/0507632
•
DOI:
- 10.1103/RevModPhys.78.537

[4]

Multiple field inflation

David Wands
(
- Portsmouth U., ICG
)

- Lect.Notes Phys. 738 (2008) 275-304
•
e-Print:
- astro-ph/0702187
•
DOI:
- 10.1007/978-3-540-74353-8_8

[5]

Conditions for large non-Gaussianity in two-field slow-roll inflation

Christian T. Byrnes
(
- Heidelberg U.
)
,
Ki-Young Choi
(
- Madrid, Autonoma U. and
- Madrid, IFT
)
,
Lisa M.H. Hall
(
- Sheffield U.
)

- JCAP 10 (2008) 008
•
e-Print:
- 0807.1101
•
DOI:
- 10.1088/1475-7516/2008/10/008

[6]

Bounds on CDM and neutrino isocurvature perturbations from CMB and LSS data

Maria Beltran
(
- Madrid, Autonoma U.
)
,
Juan Garcia-Bellido
(
- Madrid, Autonoma U.
)
,
Julien Lesgourgues
(
- Annecy, LAPTH
)
,
Alain Riazuelo
(
- Paris, Inst. Astrophys.
)

- Phys.Rev.D 70 (2004) 103530
•
e-Print:
- astro-ph/0409326
•
DOI:
- 10.1103/PhysRevD.70.103530

[7]

Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

WMAP

Collaboration

•

E. Komatsu
(
- Texas U.
)

et al.

- Astrophys.J.Suppl. 180 (2009) 330-376
•
e-Print:
- 0803.0547
•
DOI:
- 10.1088/0067-0049/180/2/330

[8]

Evolution of the curvature perturbation during and after multi-field inflation

Ki-Young Choi
(
- Madrid, IFT and
- Madrid, Autonoma U.
)
,
Jinn-Ouk Gong
(
- Madrid, IFT and
- Leiden U.
)
,
Donghui Jeong
(
- Texas U., Astron. Dept.
)

- JCAP 02 (2009) 032
•
e-Print:
- 0810.2299
•
DOI:
- 10.1088/1475-7516/2009/02/032

[9]

Generating the curvature perturbation at the end of inflation

David H. Lyth
(
- Lancaster U.
)

- JCAP 11 (2005) 006
•
e-Print:
- astro-ph/0510443
•
DOI:
- 10.1088/1475-7516/2005/11/006

[10]

Non-Gaussianities in models with a varying inflaton decay rate

Matias Zaldarriaga
(
- Harvard-Smithsonian Ctr. Astrophys. and
- Harvard U.
)

- Phys.Rev.D 69 (2004) 043508
•
e-Print:
- astro-ph/0306006
•
DOI:
- 10.1103/PhysRevD.69.043508

[11]

Fluctuating annihilation cross sections and the generation of density perturbations

- Phys.Rev.D 72 (2005) 023512
•
e-Print:
- astro-ph/0502113
•
DOI:
- 10.1103/PhysRevD.72.023512

[12]

Non-Gaussianity in the modulated reheating scenario

Teruaki Suyama
(
- Tokyo U., ICRR
)
,
Masahide Yamaguchi
(
- Aoyama Gakuin U.
)

- Phys.Rev.D 77 (2008) 023505
•
e-Print:
- 0709.2545
•
DOI:
- 10.1103/PhysRevD.77.023505

[13]

Primordial Curvature Fluctuation and Its Non-Gaussianity in Models with Modulated Reheating

Kazuhide Ichikawa
(
- University Coll. London
)
,
Teruaki Suyama
(
- Tokyo U., ICRR
)
,
Tomo Takahashi
(
- Saga U., Japan
)
,
Masahide Yamaguchi
(
- Aoyama Gakuin U. and
- Stanford U., Phys. Dept.
)

- Phys.Rev.D 78 (2008) 063545
•
e-Print:
- 0807.3988
•
DOI:
- 10.1103/PhysRevD.78.063545

[14]

Isocurvature Baryon Perturbations and Inflation

Silvia Mollerach
(
- SISSA, Trieste
)

- Phys.Rev.D 42 (1990) 313-325
•
DOI:
- 10.1103/PhysRevD.42.313

[15]

Nongaussian isocurvature perturbations from inflation

- Phys.Rev.D 56 (1997) R535-R539
•
e-Print:
- astro-ph/9610219
•
DOI:
- 10.1103/PhysRevD.56.R535

[16]

Generating the curvature perturbation without an inflaton

David H. Lyth
(
- Lancaster U.
)
,
David Wands
(
- Portsmouth U., ICG
)

- Phys.Lett.B 524 (2002) 5-14
•
e-Print:
- hep-ph/0110002
•
DOI:
- 10.1016/S0370-2693(01)01366-1

[17]

Effects of cosmological moduli fields on cosmic microwave background

Takeo Moroi
(
- Tohoku U.
)
,
Tomo Takahashi
(
- Tohoku U.
)

- Phys.Lett.B 522 (2001) 215-221,
- Phys.Lett.B 539 (2002) 303-303 (erratum)
•
e-Print:
- hep-ph/0110096
•
DOI:
- 10.1016/S0370-2693(01)01295-3

[17]

Effects of cosmological moduli fields on cosmic microwave background

Takeo Moroi
(
- Tohoku U.
)
,
Tomo Takahashi
(
- Tohoku U.
)

- Phys.Lett.B 522 (2001) 215-221,
- Phys.Lett.B 539 (2002) 303-303 (erratum)
•
e-Print:
- hep-ph/0110096
•
DOI:
- 10.1016/S0370-2693(01)01295-3

[18]

Adiabatic CMB perturbations in pre - big bang string cosmology

Kari Enqvist
(
- Helsinki Inst. of Phys. and
- Helsinki U.
)
,
Martin S. Sloth
(
- Helsinki Inst. of Phys. and
- Helsinki U.
)

- Nucl.Phys.B 626 (2002) 395-409
•
e-Print:
- hep-ph/0109214
•
DOI:
- 10.1016/S0550-3213(02)00043-3

[19]

The Primordial density perturbation in the curvaton scenario

David H. Lyth
(
- Lancaster U.
)
,
Carlo Ungarelli
(
- Portsmouth U., ICG
)
,
David Wands
(
- Portsmouth U., ICG
)

- Phys.Rev.D 67 (2003) 023503
•
e-Print:
- astro-ph/0208055
•
DOI:
- 10.1103/PhysRevD.67.023503

[20]

Generating the Curvature Perturbation at the End of Inflation in String Theory

David H. Lyth
(
- Lancaster U.
)
,
Antonio Riotto
(
- CERN and
- INFN, Padua
)

- Phys.Rev.Lett. 97 (2006) 121301
•
e-Print:
- astro-ph/0607326
•
DOI:
- 10.1103/PhysRevLett.97.121301

[21]

Multi-brid inflation and non-Gaussianity

Misao Sasaki

- Prog.Theor.Phys. 120 (2008) 159-174
•
e-Print:
- 0805.0974
•
DOI:
- 10.1143/PTP.120.159

[22]

Large non-Gaussianity from multi-brid inflation

- Prog.Theor.Phys. 121 (2009) 193-210
•
e-Print:
- 0807.0180
•
DOI:
- 10.1143/PTP.121.193

[23]

The Trispectrum in the Multi-brid Inflation

Qing-Guo Huang
(
- Korea Inst. Advanced Study, Seoul
)

- JCAP 05 (2009) 005
•
e-Print:
- 0903.1542
•
DOI:
- 10.1088/1475-7516/2009/05/005

[24]

Hybrid inflation along waterfall trajectories

Sebastien Clesse
(
- Brussels U. and
- Louvain U. and
- Louvain U., CP3
)

- Phys.Rev.D 83 (2011) 063518
•
e-Print:
- 1006.4522
•
DOI:
- 10.1103/PhysRevD.83.063518

1-25 of 61
1
2
3
25 / page