A perturbative RS I cosmological phase transition

被引:0
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作者
Don Bunk
Jay Hubisz
Bithika Jain
机构
[1] Skidmore College,Department of Physics
[2] Syracuse University,Department of Physics
[3] Korea Institute for Advanced Study,School of Physics
来源
The European Physical Journal C | 2018年 / 78卷
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摘要
We identify a class of Randall–Sundrum type models with a successful first order cosmological phase transition during which a 5D dual of approximate conformal symmetry is spontaneously broken. Our focus is on soft-wall models that naturally realize a light radion/dilaton and suppressed dynamical contribution to the cosmological constant. We discuss phenomenology of the phase transition after developing a theoretical and numerical analysis of these models both at zero and finite temperature. We demonstrate a model with a TeV-Planck hierarchy and with a successful cosmological phase transition where the UV value of the curvature corresponds, via AdS/CFT, to an N of 20, where 5D gravity is expected to be firmly in the perturbative regime.
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