Harvesting entanglement from the gravitational vacuum
T. Rick Perche, Boris Ragula, Eduardo Martín-Martínez
Abstract
We study how quantum systems can harvest entanglement from the quantum degrees of freedom of the gravitational field. Concretely, we describe in detail the interaction of nonrelativistic quantum systems with linearized quantum gravity, and explore how two spacelike separated probes can harvest entanglement from the gravitational field in this context. We provide estimates for the harvested entanglement for realistic probes which can be experimentally relevant in the future, since entanglement harvesting experiments can provide evidence for the existence of quantum degrees of freedom of gravity.
Topics & Concepts
Quantum entanglementPhysicsGravitationGravitational fieldQuantum metrologyDegrees of freedom (physics and chemistry)Context (archaeology)Quantum gravityQuantumQuantum sensorQuantum mechanicsSquashed entanglementField (mathematics)Classical mechanicsQuantum discordTheoretical physicsQuantum networkMathematicsBiologyPure mathematicsPaleontologyQuantum Electrodynamics and Casimir EffectMechanical and Optical ResonatorsCosmology and Gravitation Theories