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Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models

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Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models. / Kim, Jinsu; McDonald, John.
In: Physical Review D, Vol. 95, No. 12, 123537, 30.06.2017.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Kim, J & McDonald, J 2017, 'Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models', Physical Review D, vol. 95, no. 12, 123537. https://doi.org/10.1103/PhysRevD.95.123537

APA

Kim, J., & McDonald, J. (2017). Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models. Physical Review D, 95(12), Article 123537. https://doi.org/10.1103/PhysRevD.95.123537

Vancouver

Kim J, McDonald J. Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models. Physical Review D. 2017 Jun 30;95(12):123537. doi: 10.1103/PhysRevD.95.123537

Author

Kim, Jinsu ; McDonald, John. / Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models. In: Physical Review D. 2017 ; Vol. 95, No. 12.

Bibtex

@article{ccbdacb3324647f4a2a3572a3a10bf00,
title = "Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models",
abstract = "We study the stability of an inflaton condensate in the presence of attractive inflaton self-interactions, in order to determine analytical conditions on the self-interaction couplings under which the condensate undergoes fragmentation. As an application of our results, we consider the stability of the inflaton condensate in alpha-attractor inflation. We show that the stability of the condensate depends upon the value of a. For the T-model with n = 1, we find that it is unstable for alpha less than or similar to 10(-4). In this case it is expected that inflation will be followed by an oscillon-dominated era.",
author = "Jinsu Kim and John McDonald",
note = "{\textcopyright} 2017 American Physical Society",
year = "2017",
month = jun,
day = "30",
doi = "10.1103/PhysRevD.95.123537",
language = "English",
volume = "95",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "12",

}

RIS

TY - JOUR

T1 - Inflaton Condensate Fragmentation: Analytical Conditions and Application to α-Attractor Models

AU - Kim, Jinsu

AU - McDonald, John

N1 - © 2017 American Physical Society

PY - 2017/6/30

Y1 - 2017/6/30

N2 - We study the stability of an inflaton condensate in the presence of attractive inflaton self-interactions, in order to determine analytical conditions on the self-interaction couplings under which the condensate undergoes fragmentation. As an application of our results, we consider the stability of the inflaton condensate in alpha-attractor inflation. We show that the stability of the condensate depends upon the value of a. For the T-model with n = 1, we find that it is unstable for alpha less than or similar to 10(-4). In this case it is expected that inflation will be followed by an oscillon-dominated era.

AB - We study the stability of an inflaton condensate in the presence of attractive inflaton self-interactions, in order to determine analytical conditions on the self-interaction couplings under which the condensate undergoes fragmentation. As an application of our results, we consider the stability of the inflaton condensate in alpha-attractor inflation. We show that the stability of the condensate depends upon the value of a. For the T-model with n = 1, we find that it is unstable for alpha less than or similar to 10(-4). In this case it is expected that inflation will be followed by an oscillon-dominated era.

U2 - 10.1103/PhysRevD.95.123537

DO - 10.1103/PhysRevD.95.123537

M3 - Journal article

VL - 95

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 12

M1 - 123537

ER -