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Black Hole Interior in Quantum Gravity.
Yasunori Nomura1, Fabio Sanches1, Sean J Weinberg1
1Berkeley Center for Theoretical Physics, Department of Physics, University of California, Berkeley, California 94720, USA and Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
Quantum gravity resolves black hole evaporation paradoxes, showing unitary formation and decay. Black hole interiors emerge via complementarity, reconciling quantum mechanics and the equivalence principle.
Area of Science:
- Theoretical Physics
- Quantum Gravity
- Black Hole Physics
Background:
- Black holes are central to understanding quantum gravity.
- Unitary black hole formation and evaporation are key theoretical challenges.
- The interplay between quantum mechanics and general relativity remains poorly understood.
Purpose of the Study:
- To explore the black hole interior within a quantum gravity framework.
- To demonstrate unitary black hole formation and evaporation.
- To reconcile the apparent contradictions between quantum mechanics and the equivalence principle in black hole physics.
Main Methods:
- Utilizing concepts from quantum gravity.
- Applying the principle of complementarity.
- Analyzing microscopic degrees of freedom from a semiclassical perspective.
Main Results:
- Black hole interiors are shown to appear via complementarity.
- Microscopic degrees of freedom reveal special features of the interior spacetime.
- Quantum mechanics and the equivalence principle are found to be consistent, albeit subtly.
Conclusions:
- The study provides a consistent picture of black hole interiors in quantum gravity.
- Unitary black hole evaporation is achievable.
- The findings support the consistency of fundamental physical principles in extreme gravitational environments.

