Gravitating Fermionic Lumps with a False Vacuum Core

We investigate gravitating lumps with a false vacuum core surrounded by the true vacuum in a scalar field potential. Such configurations become possible in Einstein gravity in the presence of fermions at the core. Gravitational interactions as well as Yukawa interactions are essential for such lumps...

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Published in:Progress of theoretical and experimental physics 2003-12, Vol.110 (6), p.1151-1168
Main Authors: Daghigh, Ramin G., Hosotani, Yutaka
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Language:English
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Hosotani, Yutaka
description We investigate gravitating lumps with a false vacuum core surrounded by the true vacuum in a scalar field potential. Such configurations become possible in Einstein gravity in the presence of fermions at the core. Gravitational interactions as well as Yukawa interactions are essential for such lumps to exist. The mass and size of gravitating lumps sensitively depend on the scale characterizing the scalar field potential and the density of fermions. These objects can exist in the universe at various scales.
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title Gravitating Fermionic Lumps with a False Vacuum Core
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