Expanding universe and dynamical compactification using Yang-Mills instantons

A bstract We consider an eight-dimensional Einstein-Yang-Mills theory to explore whether Yang-Mills instantons formed in extra dimensions can induce the dynamical instability of our four-dimensional spacetime. We show that the Yang-Mills instantons in extra dimensions can trigger the expansion of ou...

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Bibliographic Details
Published in:The journal of high energy physics 2018-12, Vol.2018 (12), p.1-26, Article 85
Main Authors: Kim, Kyung Kiu, Koh, Seoktae, Yang, Hyun Seok
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Compactification and String Models
Cosmology of Theories beyond the SM
Dynamic stability
Elementary Particles
Field Theories in Higher Dimensions
Heating
High energy physics
Instantons
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity
Relativity Theory
Spacetime
String Theory
Universe
Yang-Mills theory
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Summary:A bstract We consider an eight-dimensional Einstein-Yang-Mills theory to explore whether Yang-Mills instantons formed in extra dimensions can induce the dynamical instability of our four-dimensional spacetime. We show that the Yang-Mills instantons in extra dimensions can trigger the expansion of our universe in four-dimensional spacetime as well as the dynamical compactification of extra dimensions. We also discuss a possibility to realize a reheating mechanism via the quantum back-reaction from the contracting tiny internal space with a smeared instanton.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP12(2018)085