Entanglement structure of quantum fields through local probes
Bruno de S. L. Torres, Kelly Wurtz, José Polo-Gómez, Eduardo Martín-Martínez
Abstract
A bstract We present a framework to study the entanglement structure of a quantum field theory inspired by the formalism of particle detectors in relativistic quantum information. This framework can in principle be used to faithfully capture entanglement in a QFT between arbitrary-shaped regions of spacetime without encountering UV divergences, bypassing many of the issues typically present in other approaches. Our results also establish the limits of the efficiency of entanglement harvesting, and may also be used to motivate an operational definition of entanglement between spacetime subregions in field theory.
Topics & Concepts
Quantum entanglementPhysicsSpacetimeTheoretical physicsQuantum field theorySquashed entanglementQuantum mechanicsQuantum field theory in curved spacetimeFormalism (music)Quantum metrologyQuantum sensorQuantum discordQuantumQuantum gravityClassical mechanicsQuantum networkArtMusicalVisual artsQuantum Electrodynamics and Casimir EffectMechanical and Optical ResonatorsStrong Light-Matter Interactions