Looking Inside a Black Hole

Abstract

The cosmic censorship conjecture posits that singularities forming to the future of a regular Cauchy surface are hidden by an event horizon. Consequently any topological structures will ultimately collapse within the horizon of a set of black holes and so no observer can actively probe them classically. We consider here a quantum analog of this problem, in which we compare the transition rates of an Unruh-DeWitt detector placed outside the horizon of an eternal BTZ black hole and its associated geon counterpart. We find the transition rates differ, with the latter being time-dependent, implying that we are indeed able to probe the structure of the singularity from outside the Killing horizon.

5 pages, 3 figures

References in corpus (2)

• Transition rate of the Unruh-DeWitt detector in curved spacetime
• Static, stationary and inertial Unruh-DeWitt detectors on the BTZ black hole

Cited by in corpus (24)

• Spacetime structure and vacuum entanglement
• Harvesting Entanglement from the Black Hole Vacuum
• Effects of Horizons on Entanglement Harvesting
• The BTZ black hole exhibits anti-Hawking phenomena
• Quantum signatures of black hole mass superpositions
• Entanglement harvesting of three Unruh-DeWitt detectors
• Entanglement Harvesting with a Twist
• Thermality, causality and the quantum-controlled Unruh-deWitt detector
• The equivalence principle and QFT: Can a particle detector tell if we live inside a hollow shell?
• Over the horizon: distinguishing the Schwarzschild spacetime and the ${\mathbb{RP}}^3$ spacetime using an Unruh-DeWitt detector
• Anti-Hawking Phenomena around a Rotating BTZ Black Hole
• Topological and Time Dependence of the Action-Complexity Relation
• Decoding Quantum Field Theory with Machine Learning
• Fisher Information of a Black Hole Spacetime
• Schrödinger's Black Hole Cat
• Quantum Distinction of Inertial Frames: Local vs. Global
• Geons and the Quantum Information Metric
• Quantum Detection of Inertial Frame Dragging
• Quantum Detection of Conicity
• Deep in the knotted black hole
• Particle detectors under chronological hazard
• Quantum correlation and origin of Hawking radiation for mass-superposed BTZ black holes
• Probing hidden topology with quantum detectors
• Equilibrium and nonequilibrium quantum correlations between two detectors in curved space time