Quantum signatures of black hole mass superpositions

Abstract

We present a new operational framework for studying ``superpositions of spacetimes'', which are of fundamental interest in the development of a theory of quantum gravity. Our approach capitalizes on nonlocal correlations in curved spacetime quantum field theory, allowing us to formulate a metric for spacetime superpositions as well as characterizing the coupling of particle detectors to a quantum field. We apply our approach to analyze the dynamics of a detector (using the Unruh-deWitt model) in a spacetime generated by a BTZ black hole in a superposition of masses. We find that the detector exhibits signatures of quantum-gravitational effects corroborating and extending Bekenstein's seminal conjecture concerning the quantized mass spectrum of black holes in quantum gravity. Crucially, this result follows directly from the approach, without any additional assumptions about the black hole mass properties.

arXiv commentClose to published version. Supplemental materials found on publisher's website

References in corpus (52)

• The Black Hole in Three Dimensional Space Time
• Quantum Geometry and Black Hole Entropy
• The information paradox: A pedagogical introduction
• The Unruh effect and its applications
• A Spin Entanglement Witness for Quantum Gravity
• Gravitationally-induced entanglement between two massive particles is sufficient evidence of quantum effects in gravity
• Bohr's Correspondence Principle and The Area Spectrum of Quantum Black Holes
• Noncommutative Black Holes, The Final Appeal To Quantum Gravity: A Review
• The (2+1)-Dimensional Black Hole
• Spectroscopy of the quantum black hole
• Geometrodynamics of Schwarzschild Black Holes
• Quantum Superposition of Massive Objects and the Quantization of Gravity
• Loop quantization of the Schwarzschild black hole
• On the possibility of laboratory evidence for quantum superposition of geometries
• Canonical Quantization of Spherically Symmetric Gravity in Ashtekar's Self-Dual Representation
• Scalar field quantization on the 2+1 dimensional black hole background
• Quantum black holes in Loop Quantum Gravity
• Bell's Theorem for Temporal Order
• Spherically Symmetric Gravity as a Completely Integrable System
• Harvesting Entanglement from the Black Hole Vacuum
• Area spectrum of rotating black holes via the new interpretation of quasinormal modes
• Loop quantization of spherically symmetric midi-superspaces
• Conceptual Problems in Quantum Gravity and Quantum Cosmology
• Quantum tunneling and black hole spectroscopy
• Quantum Black Holes as Atoms
• Causal particle detectors and topology
• Quantum superposition of spacetimes obeys Einstein's Equivalence Principle
• Entanglement of quantum clocks through gravity
• Quantum Gravity in 2+1 Dimensions
• Static, stationary and inertial Unruh-DeWitt detectors on the BTZ black hole
• Quantum Fluctuations of a BTZ Black Hole in Massive Gravity
• Area spectra of the rotating BTZ black hole from quasinormal modes
• Spacetime Quantum Reference Frames and superpositions of proper times
• The black hole information paradox
• Decoherence of Black Holes by Hawking Radiation
• Quantum Temporal Superposition: the case of QFT
• Unruh-deWitt detectors in quantum superpositions of trajectories
• Entanglement amplification between superposed detectors in flat and curved spacetimes
• The BTZ black hole exhibits anti-Hawking phenomena
• Unruh effect for detectors in superposition of accelerations
• Jacob Bekenstein's Universes: From Black Holes to Modified Theories of Gravity
• Replacing the Notion of Spacetime Distance by the Notion of Correlation
• Spacetime Curvature in terms of Scalar Field Propagators
• Looking Inside a Black Hole
• Imprints of Spacetime Topology in the Hawking-Unruh Effect
• Schrödinger's cat for de Sitter spacetime
• Thermality, causality and the quantum-controlled Unruh-deWitt detector
• Decoherence of black hole superpositions
• Comments on the anti-Hawking effect on a BTZ black hole spacetime
• Anti-Hawking Phenomena around a Rotating BTZ Black Hole
• Discrete quantum spectrum of black holes
• Analogue gravity simulation of superpositions of spacetimes

Cited by in corpus (24)

• Quantum superpositions of Minkowski spacetime
• Unruh-DeWitt detector in dimensionally-reduced static spherically symmetric spacetimes
• Identification is Pointless: Quantum Coordinates, Localisation of Events, and the Quantum Hole Argument
• Entanglement harvesting in quantum superposed spacetime
• Dissipative dynamics of an open quantum battery in the BTZ spacetime
• Can the latent signatures of quantum superposition be detected through correlation harvesting?
• Quantum conformal symmetries for spacetimes in superposition
• Gravitational quantum switch on a superposition of spherical shells
• Gravitational entanglement witness through Einstein ring image
• Accelerated detector in a superposed spacetime
• A simple gravitational self-decoherence model
• Superpositions of thermalisations in relativistic quantum field theory
• Quantum thermal machines in BTZ black hole spacetime
• Decoherence of a composite particle induced by a weak quantized gravitational field
• Quantum correlation and origin of Hawking radiation for mass-superposed BTZ black holes
• A spacetime-covariant approach to inertial and accelerated quantum clocks in first-quantization
• Entropic uncertainty and coherence in Einstein-Gauss-Bonnet gravity
• Doubly Quantum Mechanics
• Back-action from inertial and non-inertial Unruh-DeWitt detectors revisited in covariant perturbation theory
• Space-time superpositions as fluctuating geometries
• Bosonic and fermionic mutual information of N-partite systems in dilaton black hole background
• Gravitational quantum speed limit
• Non-monotonic evolution of multipartite entanglement under the Unruh effect
• Coherence and Entanglement in a Non-commutative Spacetime