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arXiv · 1811.01078

On a soliton-type spacetime defect

F. R. Klinkhamer
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Abstract

We review the construction of a particular soliton-type solution of the classical Einstein and matter-field equations. This localized finite-energy static classical solution can be interpreted as a single spacetime defect embedded in Minkowski spacetime and may give rise to several new effects. For a Skyrme-type theory with small enough matter-field energy scale compared to the Planck energy scale and for a sufficiently small defect length scale, the existence of a globally regular solution requires a negative active gravitational mass, so that the defect repels a distant test particle ("antigravity"). There also exist "stealth defects" which have a vanishing asymptotic gravitational mass. These stealth defects are, however, not entirely invisible as they bring about a new type of gravitational lensing.

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F. R. Klinkhamer. 2018-11-05. On a soliton-type spacetime defect. https://doi.org/10.1088/1742-6596%2F1275%2F1%2F012012

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