Traversing Through a Black Hole Singularity

Mercati, F. and Sloan, David (2022) Traversing Through a Black Hole Singularity. Physical Review D, 106 (4): 044015. ISSN 1550-7998

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Abstract

We show that the Kantowski-Sachs model of a Schwarzschild black hole interior can be slightly generalized in order to accommodate spatial metrics of different orientations, and in this formulation the equations of motion admit a variable redefinition that makes the system regular at the singularity. This system will then traverse the singularity in a deterministic way (information will be conserved through it), and evolve into a time-reversed and orientation-flipped Schwarzschild white hole interior.