Built on

S. -H. H. Tye, J. Xu and Y. Zhang, “Multi-field Inflation with a Random Potential,” JCAP 0904
Original
1944
Earlier work this paper cites.
J. H. Traschen and R. H. Brandenberger, “Particle Production During Out-of-equilibrium Phase Transitions,” Phys. Rev. D 42
1995
Earlier work this paper cites.
L. Kofman, A. D. Linde and A. A. Starobinsky, “Towards the theory of reheating after inflation,” Phys. Rev. D 56
1997
Earlier work this paper cites.
G. R. Dvali and S. H. H. Tye, “Brane inflation,” Phys. Lett. B 450
1999
Earlier work this paper cites.
R. Bousso and J. Polchinski, “Quantization of four-form fluxes and dynamical neutralization of the cosmological constant,” JHEP 0006
2000
Earlier work this paper cites.
D. J. H. Chung, E. W. Kolb, A. Riotto, I. I. Tkachev, “Probing Planckian physics: Resonant production of particles during inflation and features in the primordial power spectrum,” Phys. Rev. D62
2000
Earlier work this paper cites.
C. P. Burgess, M. Majumdar, D. Nolte, F. Quevedo, G. Rajesh and R. -J. Zhang, “The Inflationary brane anti-brane universe,” JHEP 0107
2001
Earlier work this paper cites.
S. B. Giddings, S. Kachru and J. Polchinski, “Hierarchies from fluxes in string compactifications,” Phys. Rev. D 66
2002
Earlier work this paper cites.
S. H. S. Alexander, “Inflation from D - anti-D-brane annihilation,” Phys. Rev. D 65
2002
Earlier work this paper cites.
S. Kachru, R. Kallosh, A. Linde and S. P. Trivedi, “De Sitter vacua in string theory,” Phys. Rev. D 68
2003
Earlier work this paper cites.

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Then

Y. Wang, “Multi-Stream Inflation: Bifurcations and Recombinations in the Multiverse,” Journal of Cosmology, 2010, Vol 4, pages 744-759 [arXiv:1001.0008 [hep-th]]
Original
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N. Barnaby, “On Features and Nongaussianity from Inflationary Particle Production,” Phys. Rev. D 82
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D. Battefeld, T. Battefeld, “A Terminal Velocity on the Landscape: Particle Production near Extra Species Loci in Higher Dimensions,” JHEP 1007
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2010
Later among the works it cites.
S. -H. H. Tye, J. Xu, “A Meandering Inflaton,” Phys. Lett. B683
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2011

Multi-Stream Inflation in a Landscape

Duplessis, Francis, Wang, Yi, Brandenberger, Robert

Understand

There are hidden observables for inflation, such as features localized in position space, which do not manifest themselves when only one inflation trajectory is considered.

To address this issue, we investigate inflation dynamics in a landscape mimicked by a random potential.
We calculate the probability for bifurcation of the inflation trajectory in multi-stream inflation.
Depending on the shape of the random bumps and the distance between bumps in the potential, there is a phase transition: on one side of the critical curve in parameter space isocurvature fluctuation are exponentially amplified and bifurcation becomes very probable.

Built on

S. -H. H. Tye, J. Xu and Y. Zhang, “Multi-field Inflation with a Random Potential,” JCAP 0904
Original
1944
Earlier work this paper cites.
J. H. Traschen and R. H. Brandenberger, “Particle Production During Out-of-equilibrium Phase Transitions,” Phys. Rev. D 42
1995
Earlier work this paper cites.
L. Kofman, A. D. Linde and A. A. Starobinsky, “Towards the theory of reheating after inflation,” Phys. Rev. D 56
1997
Earlier work this paper cites.
G. R. Dvali and S. H. H. Tye, “Brane inflation,” Phys. Lett. B 450
1999
Earlier work this paper cites.
R. Bousso and J. Polchinski, “Quantization of four-form fluxes and dynamical neutralization of the cosmological constant,” JHEP 0006
2000
Earlier work this paper cites.
D. J. H. Chung, E. W. Kolb, A. Riotto, I. I. Tkachev, “Probing Planckian physics: Resonant production of particles during inflation and features in the primordial power spectrum,” Phys. Rev. D62
2000
Earlier work this paper cites.
C. P. Burgess, M. Majumdar, D. Nolte, F. Quevedo, G. Rajesh and R. -J. Zhang, “The Inflationary brane anti-brane universe,” JHEP 0107
2001
Earlier work this paper cites.
S. B. Giddings, S. Kachru and J. Polchinski, “Hierarchies from fluxes in string compactifications,” Phys. Rev. D 66
2002
Earlier work this paper cites.
S. H. S. Alexander, “Inflation from D - anti-D-brane annihilation,” Phys. Rev. D 65
2002
Earlier work this paper cites.
S. Kachru, R. Kallosh, A. Linde and S. P. Trivedi, “De Sitter vacua in string theory,” Phys. Rev. D 68
2003
Earlier work this paper cites.