Once again on thin-shell wormholes in scalar-tensor gravity
Kirill A. Bronnikov, Alexei A. Starobinsky
TL;DR
This paper proves that all thin-shell wormholes constructed from identical vacuum static, spherically symmetric spacetimes inherently possess negative shell surface energy density within scalar-tensor gravity theories featuring a non-ghost massless scalar field and graviton.
Contribution
It establishes a universal energy condition constraint for thin-shell wormholes in a broad class of scalar-tensor gravity theories.
Findings
All such wormholes have negative shell surface energy density.
The result applies to theories with non-ghost massless scalar fields and gravitons.
It generalizes previous results to scalar-tensor frameworks.
Abstract
It is proved that all thin-shell wormholes built from two identical regions of vacuum static, spherically symmetric space-times have a negative shell surface energy density in any scalar-tensor theory of gravity with a non-ghost massless scalar field and a non-ghost graviton.
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