Abstract
In the standard formalism of quantum gravity, black holes appear to form statistical distributions of quantum states. Now, however, we can present a theory that yields pure quantum states. It shows how particles entering a black hole can generate firewalls, which however can be removed, replacing them by the ‘footprints’ they produce in the out-going particles. This procedure can preserve the quantum information stored inside and around the black hole. We then focus on a subtle but unavoidable modification of the topology of the Schwarzschild metric: antipodal identification of points on the horizon. If it is true that vacuum fluctuations include virtual black holes, then the structure of space-time is radically different from what is usually thought.
Highlights
A theory is needed that blends black holes with other, ordinary forms of matter
This requires a treatment that explains what happens to the quantum information that appears to be absorbed by black holes [1,2,3]
We need a description of black holes in terms of pure quantum states [4,5,6,7,8]—as opposed to Presented at the Lemaître Workshop on Black Holes, Gravitational Waves and Spacetime Singularities, The Vatican Observatory, May 9, 2017
Summary
A theory is needed that blends black holes with other, ordinary forms of matter Among other things, this requires a treatment that explains what happens to the quantum information that appears to be absorbed by black holes [1,2,3]. This requires a treatment that explains what happens to the quantum information that appears to be absorbed by black holes [1,2,3] To do this well, we need a description of black holes in terms of pure quantum states [4,5,6,7,8]—as opposed to Presented at the Lemaître Workshop on Black Holes, Gravitational Waves and Spacetime Singularities, The Vatican Observatory, May 9, 2017
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