Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP02(2020)111
Keywords
Cosmology of Theories beyond the SM; Field Theories in Higher Dimensions
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Funding
- JSPS under the Japan-Korea Basic Scientific Cooperation Program
- NRF under the Japan-Korea Basic Scientific Cooperation Program
- JSPS
- Department of Physics at MIT
- U.S. Department of Energy, Office of Science, Office of High Energy Physics of U.S. Department of Energy [DE-SC0012567]
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We propose a new radion stabilization mechanism in the Randall-Sundrum spacetime, introducing a bulk SU(N-H) gauge field which confines at a TeV scale. It turns out that the radion is stabilized by the balance between a brane tension and a pressure due to the Casimir energy of the strong SU(N-H) gauge field. We investigate the phase transition between the Randall-Sundrum (compactified) spacetime and a de-compactified spacetime and determine the parameter regime in which eternal (old) inflation is avoided and the phase transition can be completed. In comparison to the Goldberger-Wise mechanism, the 5D Planck mass can be larger than the AdS curvature and a classical description of the gravity is reliable in our stabilization mechanism. We also discuss the effect of the phase transition in cosmology such as an entropy dilution and a production of gravitational waves.
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