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arXiv · 2207.12592

If you want to cross singularity, wrap it!

Yu Nakayama
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Abstract

In two-dimensional string theory, a probe D0-brane does not see the black hole singularity due to a cancellation between its metric coupling and the dilaton coupling. A similar mechanism may work in the Schwarzschild black hole in large $D$ dimensions by considering a suitable wrapped membrane. From the asymptotic observer, the wrapped membrane looks disappearing into nothing while the continuation of the time-like trajectory beyond the singularity suggests that it would reappear as an instantaneous space-like string stretching from the singularity. A null trajectory can be extended to a null trajectory beyond the singularity. Not only the effective particle but an effective string from the wrapped membrane can exhibit the same feature.

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Yu Nakayama. 2022-07-26. If you want to cross singularity, wrap it!. https://doi.org/10.1088/1361-6382%2Faca065

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