The authors derive new multisoliton solutions in Anti-de Sitter and single solitons in de Sitter spacetimes using a curvature-deformed sine-Gordon model.
Light fields in various patches of de Sitter space-time
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One-loop metric fluctuations produce secularly growing IR divergences in the Hartle-Hawking wavefunction for complex saddles on R x S3, identical in leading order to the Lorentzian de Sitter case after UV renormalization.
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Sine-Gordon solitons in AdS, dS and other hyperbolic spaces
The authors derive new multisoliton solutions in Anti-de Sitter and single solitons in de Sitter spacetimes using a curvature-deformed sine-Gordon model.
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IR behaviour of one-loop complex $\mathbb{R}\times S^3$ saddles
One-loop metric fluctuations produce secularly growing IR divergences in the Hartle-Hawking wavefunction for complex saddles on R x S3, identical in leading order to the Lorentzian de Sitter case after UV renormalization.