UFRGS-HEP Journal Club
Wednesday 3 August 2022 -
15:00
Monday 1 August 2022
Tuesday 2 August 2022
Wednesday 3 August 2022
15:00
Gustavo Bobsin
Gustavo Bobsin
15:00 - 16:00
If you want to cross singularity, wrap it! Yu Nakayama Hide abstract | Show figures | Show BibTeX | Show discussion | View PDF | 2207.12592v1 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. Authors' comments: 14 pages, 1 figure