Harvesting Entanglement with Detectors Freely Falling into a Black Hole
arXiv:2102.09573 · doi:10.1103/PhysRevD.104.025001
Abstract
We carry out the first investigation of the entanglement and mutual information harvesting protocols for detectors freely falling into a black hole. Working in -dimensional Schwarzschild black hole spacetime, we consider two pointlike Unruh-DeWitt (UDW) detectors in different combinations of free-falling and static trajectories. Employing a generalization of relative velocity suitable for curved spacetimes, we find that the amount of correlations extracted from the black hole vacuum, at least outside the near-horizon regime, is largely kinematic in origin (i.e. it is mostly due to the relative velocities of the detectors). Second, correlations can be harvested purely from the black hole vacuum even when the detectors are causally disconnected by the event horizon. Finally, we show that the previously known `entanglement shadow' near the horizon is indeed absent for the case of two free-falling-detectors, since their relative gravitational redshift remains finite as the horizon is crossed, in accordance with the equivalence principle.
arXiv comment19 pages, 9 figures, fixed typos and changed the format
References in corpus (47)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- A computable measure of entanglement
- Separability of Mixed States: Necessary and Sufficient Conditions
- Introducing Quantum Discord
- Classical, quantum and total correlations
- Black Holes: Complementarity or Firewalls?
- Formation and evaporation of non-singular black holes
- Quantum Resource Theories
- General Entanglement Breaking Channels
- Notes on non-singular models of black holes
- The general structure of quantum resource theories
- Entanglement from the vacuum
- Violating Bell's inequalities in the vacuum
- Entangling Power of an Expanding Universe
- Harvesting correlations from the quantum vacuum
- Regular coordinate systems for Schwarzschild and other spherical spacetimes
- Acceleration-assisted entanglement harvesting and rangefinding
- The Black Hole information problem: past, present, and future
- Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms
- Spacetime structure and vacuum entanglement
- Black Hole Entropy and Soft Hair
- Harvesting Entanglement from the Black Hole Vacuum
- Causality issues of particle detector models in QFT and Quantum Optics
- Algebraic QFT in Curved Spacetime and quasifree Hadamard states: an introduction
- Radiation from Atoms Falling into a Black Hole
- General Relativistic Quantum Optics: Finite-size particle detector models in curved spacetimes
- Entangling detectors in anti-de Sitter space
- Harvesting correlations in Schwarzschild and collapsing shell spacetimes
- Onset and decay of the 1+1 Hawking-Unruh effect: what the derivative-coupling detector saw
- Broken covariance of particle detector models in relativistic quantum information
- Relativistic Quantum Optics: On the relativistic invariance of the light-matter interaction models
- Unruh-DeWitt detectors and entanglement: the anti-de Sitter space
- Quantum Temporal Superposition: the case of QFT
- Unruh-DeWitt detector response along static and circular geodesic trajectories for Schwarzschild-AdS black holes
- Effects of Horizons on Entanglement Harvesting
- General no-go theorem for entanglement extraction
- Entanglement Harvesting with Moving Mirrors
- Harvesting large scale entanglement in de Sitter space with multiple detectors
- Intrinsic definitions of "relative velocity" in general relativity
- Degenerate detectors are unable to harvest spacelike entanglement
- New techniques for entanglement harvesting in flat and curved spacetimes
- Quantum fields during black hole formation: How good an approximation is the Unruh state?
- Master equation for the Unruh-DeWitt detector and the universal relaxation time in de Sitter space
- Cavities in curved spacetimes: the response of particle detectors
- On Unitary Evolution of a Massless Scalar Field In A Schwarzschild Background: Hawking Radiation and the Information Paradox
- Moving Mirrors, Black Holes, Hawking Radiation and All That
- On the observer dependence of the Hilbert space near the horizon of black holes
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- Fully Relativistic Entanglement Harvesting
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- Entanglement harvesting from conformal vacuums between two Unruh-DeWitt detectors moving along null paths
- Unruh-DeWitt detector in dimensionally-reduced static spherically symmetric spacetimes
- Lensing of Vacuum Entanglement near Schwarzschild Black Holes
- Fate of entanglement between two Unruh-DeWitt detectors due to their motion and background temperature
- Entanglement harvesting between two inertial Unruh-DeWitt detectors from non-vacuum quantum fluctuations
- Entangled quantum Unruh Otto engine is more efficient
- Entangled Detectors Nonperturbatively Harvest Mutual Information
- Entanglement harvesting of accelerated detectors versus static ones in a thermal bath
- Qubit Heating Near a Hotspot
- Harvesting correlations from vacuum quantum fields in the presence of a reflecting boundary
- Effect of spacetime dimensions on quantum entanglement between two uniformly accelerated atoms
- Harvesting Entanglement by non-identical detectors with different energy gaps
- Sabotaging the harvesting of correlations from quantum fields
- Entanglement harvesting for different gravitational wave burst profiles with and without memory
- Dissipative dynamics of an open quantum battery in the BTZ spacetime
- A Little Excitement Across the Horizon
- Spontaneous entanglement leakage of two static entangled Unruh-DeWitt detectors
- Generation of quantum coherence for continuous variables between causally disconnected regions in dilaton spacetime
- Mutual information harvested by uniformly accelerated particle detectors
- Minkowski vacuum entanglement and accelerated oscillator chains
- Can the latent signatures of quantum superposition be detected through correlation harvesting?
- Are multiple reflecting boundaries capable of enhancing entanglement harvesting?
- Tripartite Entanglement Extraction from the Black Hole Vacuum
- Entanglement dynamics: Generalized master equation for uniformly accelerated two-level systems
- Non-perturbative method for particle detectors with continuous interactions
- Acceleration Radiation from Derivative-Coupled Atoms Falling in Modified Gravity Black Holes
- More Excitement Across the Horizon
- Can boundary configuration be tuned to optimize directional quantum steering harvesting?
- Interference of communication and field correlations in entanglement harvesting
- Harvesting Fermionic Field Entanglement in Schwarzschild Spacetime
- Atom-field dynamics in curved spacetime
- Quenched entanglement harvesting
- Duality between amplitude and derivative coupled particle detectors in the limit of large energy gaps
- A new study of the Unruh effect
- Entanglement and correlations between local observables in de Sitter spacetime
- Quasinormal Mode Spectroscopy via Horizon-Brightened Quantum Optics
- Quantum correlation and origin of Hawking radiation for mass-superposed BTZ black holes
- Deep in the knotted black hole
- Harvesting entanglement from the Lorentz-violating quantum field vacuum in a dipolar Bose-Einstein condensate
- Harvesting entanglement from the cylindrical gravitational wave spacetime
- Memory Effects and Entanglement Dynamics of Finite time Acceleration
- Influence Through Mixing: Hotspots as Benchmarks for Basic Black-Hole Behaviour
- Cosmological Expansion Induces Interference Between Communication and Entanglement Harvesting