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A Secret Tunnel Through The Horizon
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Hawking radiation is often intuitively visualized as particles that have tunneled across the horizon. Yet, at first sight, it is not apparent where the barrier is. Here I show that the barrier depends on the tunneling particle itself. The key is to implement energy conservation, so that the black hole contracts during the process of radiation. A direct consequence is that the radiation spectrum cannot be strictly thermal. The correction to the thermal spectrum is of precisely the form that one would expect from an underlying unitary quantum theory. This may have profound implications for the black hole information puzzle.
Forward citations
Cited by 2 Pith papers
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Thermodynamic Phase Transitions and Quantum Entropy Corrections in the Simpson-Visser Regular Black Hole
For the Simpson-Visser regular black hole, the heat capacity diverges at a = √2 m, but the claimed quantum entropy corrections are internally inconsistent: the 1/a² term has the wrong sign and the remnant-entropy form...
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Alternative Derivations of Hawking Radiation
A review chapter that reproduces and compares the tunneling, anomaly, and Green's function derivations of Hawking radiation, recovering the Hawking temperature and noting open justifications.
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