Field-induced entanglement in spatially superposed objects
arXiv:2102.10792 · doi:10.1103/PhysRevD.104.046001
Abstract
We discuss the generation of field-induced entanglement between two objects each in a superposition of two trajectories.The objects have currents coupled to local quantum fields, and the currents are evaluated around each trajectory of the objects.The fields have only dynamical degrees of freedom and satisfy the microcausality condition. We find that the superposed state of trajectories cannot be entangled when the objects are spacelike separated.This means that the quantum fields do not generate spacelike entanglement in the superposition of two trajectories of each object.
arXiv comment16 pages, 2 figures
References in corpus (38)
- Quantum entanglement
- Cavity Optomechanics
- Large N Field Theories, String Theory and Gravity
- The nitrogen-vacancy colour centre in diamond
- A Spin Entanglement Witness for Quantum Gravity
- Gravitationally-induced entanglement between two massive particles is sufficient evidence of quantum effects in gravity
- Entanglement from the vacuum
- Quantum Superposition of Massive Objects and the Quantization of Gravity
- Harvesting correlations from the quantum vacuum
- Acceleration-assisted entanglement harvesting and rangefinding
- Tabletop experiments for quantum gravity: a user's manual
- Locality & Entanglement in Table-Top Testing of the Quantum Nature of Linearized Gravity
- Observable quantum entanglement due to gravity
- Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms
- Quantum Gravity Witness via Entanglement of Masses: Casimir Screening
- Quantum Gravity: General Introduction and Recent Developments
- Exploring the unification of quantum theory and general relativity with a Bose-Einstein condensate
- How Far Are We from the Quantum Theory of Gravity?
- Entanglement creation between two causally-disconnected objects
- Noise and decoherence induced by gravitons
- Testing the gravitational field generated by a quantum superposition
- An Optomechanical Quantum Cavendish Experiment
- Quantum correlation of light mediated by gravity
- Gravity-induced entanglement in optomechanical systems
- Harvesting correlations from thermal and squeezed coherent states
- Qudits for Witnessing Quantum Gravity Induced Entanglement of Masses Under Decoherence
- On two recent proposals for witnessing nonclassical gravity
- Demonstration of displacement sensing of a mg-scale pendulum for mm- and mg- scale gravity measurements
- Quantum Temporal Superposition: the case of QFT
- General no-go theorem for entanglement extraction
- Entanglement amplification between superposed detectors in flat and curved spacetimes
- Quantum Superposition of Two Gravitational Cat States
- Entanglement and decoherence of massive particles due to gravity
- High Q mg-scale monolithic pendulum for quantum-limited gravity measurements
- When can gravity path-entangle two spatially superposed masses?
- Quantum Effects in Gravity Waves
- Entanglement harvesting with coherently delocalized matter
- Acceleration noise constraints on gravity induced entanglement
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