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6 papers · 2 filters
Anisotropic Power-law Inflation
Sugumi Kanno, Jiro Soda, Masa-aki Watanabe
We study an inflationary scenario in supergravity model with a gauge kinetic function. We find exact anisotropic power-law inflationary solutions when both the potential function f…
Decay of flux vacua to nothing
Jose J. Blanco-Pillado, Handhika S. Ramadhan, Benjamin Shlaer
We construct instanton solutions describing the decay of flux compactifications of a gauge theory by generalizing the Kaluza-Klein bubble of nothing. The surface of the bubble…
A signature of anisotropic bubble collisions
Michael P. Salem
Our universe may have formed via bubble nucleation in an eternally-inflating background. Furthermore, the background may have a compact dimension---the modulus of which tunnels out…
Measures for a Transdimensional Multiverse
Delia Schwartz-Perlov, Alexander Vilenkin
The multiverse/landscape paradigm that has emerged from eternal inflation and string theory, describes a large-scale multiverse populated by "pocket universes" which come in a huge…
Observable effects of anisotropic bubble nucleation
Jose J. Blanco-Pillado, Michael P. Salem
Our universe may have formed via bubble nucleation in an eternally-inflating background. Furthermore, the background may have a compact dimension--the modulus of which tunnels out…
Bubbles of Nothing in Flux Compactifications
Jose J. Blanco-Pillado, Benjamin Shlaer
We construct a simple AdS_4 x S^1 flux compactification stabilized by a complex scalar field winding the extra dimension and demonstrate an instability via nucleation of a bubble o…