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Smooth metrics can hide thin shells
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DOI：10.1088/1361-6382/acf2de.png)
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Abstract
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In this note, I consider a class of metric tensors with smooth components that naively appear to describe dynamical wormholes with vanishing spacetime curvature. I point out that the smoothness of the metric tensor components is deceptive, and that in general relativity, such metrics must be sourced by exotic thin shells.
Keywords:
thin shell wormholes
general relativity
spacetime metrics
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