3 years ago

Across-horizon scattering and information transfer

We address the question whether or not two electrically charged elementary particles can Coulomb scatter if one of these particles is inside the Schwarzschild black-hole horizon and the other outside. It can be shown that the quantum process is consistent with the local energy–momentum conservation law. This result implies that across-horizon scattering is a physical effect, relevant to astrophysical black holes. We propose a Gedankenexperiment which uses the quantum scattering process to transfer information from inside the black-hole horizon to outside.

Publisher URL: http://iopscience.iop.org/0264-9381/35/12/125004

DOI: 10.1088/1361-6382/aac1f1

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