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Cosmological Implications of the Quantum SU(2) Yang-Mills Fields

Boman, Emil LU (2019) FYTK02 20182
Theoretical Particle Physics - Undergoing reorganization
Department of Astronomy and Theoretical Physics - Undergoing reorganization
Abstract
We study the key properties of the quantum SU(2) Yang-Mills ground state and its possible role in the early Universe, in particular, as a driver of Cosmic Inflation. Using the effective action approach and separating the Yang-Mills field potential into homogeneous (condensate) and inhomogeneous (fluctuations) components, we reproduce the conformal-time solutions for the two different types of the Yang-Mills condensate in the minimum of the effective Lagrangian for generic initial conditions. Furthermore, the stability of these solutions has been shown in the case of small inhomogeneous fluctuations in the linearized quasiclassical approximation. Conclusions about the applicability of our solutions to description of the cosmic inflation... (More)
We study the key properties of the quantum SU(2) Yang-Mills ground state and its possible role in the early Universe, in particular, as a driver of Cosmic Inflation. Using the effective action approach and separating the Yang-Mills field potential into homogeneous (condensate) and inhomogeneous (fluctuations) components, we reproduce the conformal-time solutions for the two different types of the Yang-Mills condensate in the minimum of the effective Lagrangian for generic initial conditions. Furthermore, the stability of these solutions has been shown in the case of small inhomogeneous fluctuations in the linearized quasiclassical approximation. Conclusions about the applicability of our solutions to description of the cosmic inflation have been made. (Less)
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author
Boman, Emil LU
supervisor
organization
course
FYTK02 20182
year
type
M2 - Bachelor Degree
subject
keywords
Cosmic Inflation, Yang-Mills, SU(2) gauge fields
report number
LU TP 19-02
language
English
id
8971956
date added to LUP
2019-02-27 11:14:20
date last changed
2019-02-27 11:14:20
@misc{8971956,
  abstract     = {{We study the key properties of the quantum SU(2) Yang-Mills ground state and its possible role in the early Universe, in particular, as a driver of Cosmic Inflation. Using the effective action approach and separating the Yang-Mills field potential into homogeneous (condensate) and inhomogeneous (fluctuations) components, we reproduce the conformal-time solutions for the two different types of the Yang-Mills condensate in the minimum of the effective Lagrangian for generic initial conditions. Furthermore, the stability of these solutions has been shown in the case of small inhomogeneous fluctuations in the linearized quasiclassical approximation. Conclusions about the applicability of our solutions to description of the cosmic inflation have been made.}},
  author       = {{Boman, Emil}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Cosmological Implications of the Quantum SU(2) Yang-Mills Fields}},
  year         = {{2019}},
}