Built on

A. A. Starobinsky, “A New Type of Isotropic Cosmological Models Without Singularity,” Phys. Lett. 91B
1980
Earlier work this paper cites.
A. H. Guth, “The Inflationary Universe: A Possible Solution to the Horizon and Flatness Problems,” Phys. Rev. D 23
1981
Earlier work this paper cites.
A. D. Linde, “A New Inflationary Universe Scenario: A Possible Solution of the Horizon, Flatness, Homogeneity, Isotropy and Primordial Monopole Problems,” Phys. Lett. 108B
1982
Earlier work this paper cites.
A. A. Starobinsky, “Multicomponent de Sitter (Inflationary) Stages and the Generation of Perturbations,” JETP Lett. 42
1985
Earlier work this paper cites.
J. Garcia-Bellido and D. Wands, “Metric perturbations in two field inflation,” Phys. Rev. D 53
1996
Earlier work this paper cites.
A. Taruya and Y. Nambu, “Cosmological perturbation with two scalar fields in reheating after inflation,” Phys. Lett. B 428 (1998): 37, arXiv:gr-qc/9709035
1998
Earlier work this paper cites.
D. H. Lyth and A. Riotto, “Particle physics models of inflation and the cosmological density perturbation,” Phys. Rept. 314 (1999): 1, arXiv:hep-ph/9807278
1999
Earlier work this paper cites.
B. A. Bassett, D. I. Kaiser and R. Maartens, “General relativistic preheating after inflation,” Phys. Lett. B 455
1999
Earlier work this paper cites.
B. A. Bassett, F. Tamburini, D. I. Kaiser and R. Maartens, “Metric preheating and limitations of linearized gravity. 2.,” Nucl. Phys. B 561
1999
Earlier work this paper cites.
C. Gordon, D. Wands, B. A. Bassett and R. Maartens, “Adiabatic and entropy perturbations from inflation,” Phys. Rev. D 63
2000
Earlier work this paper cites.
F. Finelli and R. Brandenberger, “Parametric amplification of metric fluctuations during reheating in two field models,” Phys. Rev. D 62 (2000): 083502, arXiv:hep-ph/0003172
2000
Earlier work this paper cites.
S. Tsujikawa and B. A. Bassett, “A New twist to preheating,” Phys. Rev. D 62
2000
Earlier work this paper cites.
B. A. Bassett, C. Gordon, R. Maartens and D. I. Kaiser, “Restoring the sting to metric preheating,” Phys. Rev. D 61
2000
Earlier work this paper cites.
S. Groot Nibbelink and B. J. W. van Tent, “Scalar perturbations during multiple field slow-roll inflation,” Class. Quant. Grav. 19
2002
Earlier work this paper cites.
D. Wands, N. Bartolo, S. Matarrese and A. Riotto, “An Observational test of two-field inflation,” Phys. Rev. D 66
2002
Earlier work this paper cites.
S. Tsujikawa and B. A. Bassett, “When can preheating affect the CMB?,” Phys. Lett. B 536
2002
Earlier work this paper cites.
R. Easther and L. McAllister, “Random matrices and the spectrum of N-flation,” JCAP 0605
2006
Earlier work this paper cites.
B. A. Bassett, S. Tsujikawa and D. Wands, “Inflation dynamics and reheating,” Rev. Mod. Phys. 78
2006
Earlier work this paper cites.
J. R. Bond, L. Kofman, S. Prokushkin and P. M. Vaudrevange, “Roulette inflation with Kahler moduli and their axions,” Phys. Rev. D 75
2007
Earlier work this paper cites.
S. Dimopoulos, S. Kachru, J. McGreevy and J. G. Wacker, “N-flation,” JCAP 0808
2008
Earlier work this paper cites.
D. Wands, “Multiple field inflation,” Lect. Notes Phys. 738
2008
Earlier work this paper cites.
A. Chambers and A. Rajantie, “Lattice calculation of non-Gaussianity from preheating,” Phys. Rev. Lett. 100 (2008): 041302, arXiv:0710.4133 [astro-ph]
Original
2008
Earlier work this paper cites.

Similar

D. H. Lyth and A. R. Liddle, “The primordial density perturbation: Cosmology, inflation and the origin of structure,” Cambridge, UK: Cambridge Univ. Pr. (2009) 497 p
2009
Cited alongside, same era.
K. A. Malik and D. Wands, “Cosmological perturbations,” Phys. Rept. 475
Original
2009
Cited alongside, same era.
J. R. Bond, A. V. Frolov, Z. Huang, and L. Kofman, “Non-Gaussian spikes from chaotic billiards in inflation preheating,” Phys. Rev. Lett. 103 (2009): 071301, arXiv:0903.3407 [astro-ph]
Original
2009
Cited alongside, same era.
D. I. Kaiser and A. T. Todhunter, “Primordial perturbations from multifield inflation with nonminimal couplings,” Phys. Rev. D 81 (2010): 124037, arXiv:1004.3805 [astro-ph.CO]
Original
2010
Cited alongside, same era.
A. V. Frolov, “Non-linear dynamics and primordial curvature perturbations from preheating,” Class. Quant. Grav. 27 (2010): 124006, arXiv:1004.3559 [gr-qc]

Then

R. Easther, J. Frazer, H. V. Peiris and L. C. Price, “Simple predictions from multifield inflationary models,” Phys. Rev. Lett. 112
Original
2014
Later among the works it cites.
J. Frazer, “Predictions in multifield models of inflation,” JCAP 1401
Original
2014
Later among the works it cites.
R. Kallosh, A. Linde, B. Vercnocke and W. Chemissany, “Is Imaginary Starobinsky Model Real?,” JCAP 1407
Original
2014
Later among the works it cites.
K. Schutz, E. I. Sfakianakis, and D. I. Kaiser, “Multifield inflation after Planck: Isocurvature modes from nonminimal couplings,” Phys. Rev. D89 (2014): 064044, arXiv:1310.8285 [astro-ph.CO]
Original
2014
Later among the works it cites.
M. A. Amin, M. P. Hertzberg, D. I. Kaiser and J. Karouby, “Nonperturbative Dynamics Of Reheating After Inflation: A Review,” Int. J. Mod. Phys. D 24

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2018

Angular inflation in multi-field ${\alpha}$-attractors

Christodoulidis, Perseas, Roest, Diederik, Sfakianakis, Evangelos I.

Understand

We explore the dynamics of multi-field models of inflation in which the field-space metric is a hyperbolic manifold of constant curvature.

Such models are known as $\alpha$-attractors and their single-field regimes have been extensively studied in the context of inflation and supergravity.
We find a variety of multi-field inflationary trajectories in different regions of parameter space, which is spanned by the mass parameters and the hyperbolic curvature.
Amongst these is a novel dynamical attractor along the boundary of the Poincare disc which we dub "angular inflation".

Built on

A. A. Starobinsky, “A New Type of Isotropic Cosmological Models Without Singularity,” Phys. Lett. 91B
1980
Earlier work this paper cites.
A. H. Guth, “The Inflationary Universe: A Possible Solution to the Horizon and Flatness Problems,” Phys. Rev. D 23
1981
Earlier work this paper cites.
A. D. Linde, “A New Inflationary Universe Scenario: A Possible Solution of the Horizon, Flatness, Homogeneity, Isotropy and Primordial Monopole Problems,” Phys. Lett. 108B
1982
Earlier work this paper cites.
A. A. Starobinsky, “Multicomponent de Sitter (Inflationary) Stages and the Generation of Perturbations,” JETP Lett. 42
1985
Earlier work this paper cites.
J. Garcia-Bellido and D. Wands, “Metric perturbations in two field inflation,” Phys. Rev. D 53
1996
Earlier work this paper cites.
A. Taruya and Y. Nambu, “Cosmological perturbation with two scalar fields in reheating after inflation,” Phys. Lett. B 428 (1998): 37, arXiv:gr-qc/9709035
1998
Earlier work this paper cites.
D. H. Lyth and A. Riotto, “Particle physics models of inflation and the cosmological density perturbation,” Phys. Rept. 314 (1999): 1, arXiv:hep-ph/9807278
1999
Earlier work this paper cites.
B. A. Bassett, D. I. Kaiser and R. Maartens, “General relativistic preheating after inflation,” Phys. Lett. B 455
1999
Earlier work this paper cites.
B. A. Bassett, F. Tamburini, D. I. Kaiser and R. Maartens, “Metric preheating and limitations of linearized gravity. 2.,” Nucl. Phys. B 561
1999
Earlier work this paper cites.
C. Gordon, D. Wands, B. A. Bassett and R. Maartens, “Adiabatic and entropy perturbations from inflation,” Phys. Rev. D 63
2000
Earlier work this paper cites.
F. Finelli and R. Brandenberger, “Parametric amplification of metric fluctuations during reheating in two field models,” Phys. Rev. D 62 (2000): 083502, arXiv:hep-ph/0003172
2000
Earlier work this paper cites.
S. Tsujikawa and B. A. Bassett, “A New twist to preheating,” Phys. Rev. D 62
2000
Earlier work this paper cites.
B. A. Bassett, C. Gordon, R. Maartens and D. I. Kaiser, “Restoring the sting to metric preheating,” Phys. Rev. D 61
2000
Earlier work this paper cites.
S. Groot Nibbelink and B. J. W. van Tent, “Scalar perturbations during multiple field slow-roll inflation,” Class. Quant. Grav. 19
2002
Earlier work this paper cites.
D. Wands, N. Bartolo, S. Matarrese and A. Riotto, “An Observational test of two-field inflation,” Phys. Rev. D 66
2002
Earlier work this paper cites.
S. Tsujikawa and B. A. Bassett, “When can preheating affect the CMB?,” Phys. Lett. B 536
2002
Earlier work this paper cites.
R. Easther and L. McAllister, “Random matrices and the spectrum of N-flation,” JCAP 0605
2006
Earlier work this paper cites.
B. A. Bassett, S. Tsujikawa and D. Wands, “Inflation dynamics and reheating,” Rev. Mod. Phys. 78
2006
Earlier work this paper cites.
J. R. Bond, L. Kofman, S. Prokushkin and P. M. Vaudrevange, “Roulette inflation with Kahler moduli and their axions,” Phys. Rev. D 75
2007
Earlier work this paper cites.
S. Dimopoulos, S. Kachru, J. McGreevy and J. G. Wacker, “N-flation,” JCAP 0808
2008
Earlier work this paper cites.
D. Wands, “Multiple field inflation,” Lect. Notes Phys. 738
2008
Earlier work this paper cites.
A. Chambers and A. Rajantie, “Lattice calculation of non-Gaussianity from preheating,” Phys. Rev. Lett. 100 (2008): 041302, arXiv:0710.4133 [astro-ph]
Original
2008
Earlier work this paper cites.