Spherically symmetric false vacuum: no-go theorems and global structure

Abstract

We enumerate all possible types of spacetime causal structures that can appear in static, spherically symmetric configurations of a self-gravitating, real, nonlinear, minimally coupled scalar field ϕin general relativity, with an arbitrary potential V(ϕ), not necessarily positive-definite. It is shown that a variable scalar field adds nothing to the list of possible structures with a constant ϕfield, namely, Minkowski (or AdS), Schwarzschild, de Sitter and Schwarzschild - de Sitter. It follows, in particular, that, whatever is V(ϕ), this theory does not admit regular black holes with flat or AdS asymptotics. It is concluded that the only possible globally regular, asymptotically flat solutions are solitons with a regular center, without horizons and with at least partly negative potentials V(ϕ). Extension of the results to more general field models is discussed.

Latex2e, 4 pages, 1 bezier figure

References in corpus (1)

• Solitons in the false vacuum

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