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Title: Multiple-axion framework

Abstract

We describe a systematic framework for periodic potentials of arbitrary dimension, such as those governing multiple axions. A novel type of alignment renders even complex theories analytically tractable. Theories with ~100 axions and random parameters have an exponential number of metastable vacua. Decay from a metastable minimum can occur via a thin-wall instanton and allows for a sufficient period of slow-roll inflation that ends in a vacuum containing axion dark matter and a cosmological constant, both consistent with current observations. Hence, this model can reproduce many macroscopic features of our Universe without tuned parameters.

Authors:
; ; ;
Publication Date:
Research Org.:
Columbia Univ., New York, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1468682
Alternate Identifier(s):
OSTI ID: 1503895
Grant/Contract Number:  
SC0011941
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 6; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Bachlechner, Thomas C., Eckerle, Kate, Janssen, Oliver, and Kleban, Matthew. Multiple-axion framework. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.061301.
Bachlechner, Thomas C., Eckerle, Kate, Janssen, Oliver, & Kleban, Matthew. Multiple-axion framework. United States. doi:10.1103/PhysRevD.98.061301.
Bachlechner, Thomas C., Eckerle, Kate, Janssen, Oliver, and Kleban, Matthew. Wed . "Multiple-axion framework". United States. doi:10.1103/PhysRevD.98.061301.
@article{osti_1468682,
title = {Multiple-axion framework},
author = {Bachlechner, Thomas C. and Eckerle, Kate and Janssen, Oliver and Kleban, Matthew},
abstractNote = {We describe a systematic framework for periodic potentials of arbitrary dimension, such as those governing multiple axions. A novel type of alignment renders even complex theories analytically tractable. Theories with ~100 axions and random parameters have an exponential number of metastable vacua. Decay from a metastable minimum can occur via a thin-wall instanton and allows for a sufficient period of slow-roll inflation that ends in a vacuum containing axion dark matter and a cosmological constant, both consistent with current observations. Hence, this model can reproduce many macroscopic features of our Universe without tuned parameters.},
doi = {10.1103/PhysRevD.98.061301},
journal = {Physical Review D},
number = 6,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.98.061301

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Cited by: 1 work
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