Chern-Simons EM-flation

A bstract We propose a new, generic mechanism of inflation mediated by a balance between potential forces and a Chern-Simons interaction. Such quasi-topological interactions are ubiquitous in string theory. In the minisuperspace approximation, their effect on the dynamics can be mapped onto the prob...

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Published inThe journal of high energy physics Vol. 2013; no. 2; pp. 1 - 27
Main Authors Martinec, Emil, Adshead, Peter, Wyman, Mark
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2013
Springer Nature B.V
Subjects
Approximation
Balancing
Classical and Quantum Gravitation
Electromagnetic fields
Elementary Particles
High energy physics
Inflation
Mathematical analysis
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
Scalars
Signatures
String Theory
Brane Dynamics in Gauge Theories
D-branes
Cosmology of Theories beyond the SM
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Summary:A bstract We propose a new, generic mechanism of inflation mediated by a balance between potential forces and a Chern-Simons interaction. Such quasi-topological interactions are ubiquitous in string theory. In the minisuperspace approximation, their effect on the dynamics can be mapped onto the problem of a charged particle in an electromagnetic field together with an external potential; slow roll arises when the motion is dominated by the analogue of ‘magnetic drift’. This mechanism permits inflation to proceed even in the presence of generic, steep scalar potentials. We suggest a possible experimental signature which, if observed, might be considered strong evidence for string theory.
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ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP02(2013)027