Proving the Generation of Genuine Multipartite Entanglement in a Single-Neutron Interferometer Experiment

Abstract

We present experimental evidence of the generation of distinct types of genuine multipartite entanglement between three degrees of freedom, two internal and one external degree of freedom, within single-neutron quantum systems. This is achieved via the development of new spin manipulation apparatuses for neutron interferometry and the genuine multipartite entanglement is detected via appropriately designed and optimized non-linear witnesses. Via the applied criteria we reveal even finer properties of the type of the genuine multipartite entanglement that is produced in the experiment. In a subsequent analysis we show the extraordinarily high fidelity of genuine tripartite entangled states, proving the outstanding level of controllability of these systems.

References in corpus (12)

• Scalable multi-particle entanglement of trapped ions
• Hidden Variables and the Two Theorems of John Bell
• Measure of genuine multipartite entanglement with computable lower bounds
• Experimental entanglement of a six-photon symmetric Dicke state
• Quantum interferometric visibility as a witness of general relativistic proper time
• Pulsed Laser Cooling for Cavity-Optomechanical Resonators
• Partial separability and entanglement criteria for multiqubit quantum states
• Determining lower bounds on a measure of multipartite entanglement from few local observables
• Revealing Bell's Nonlocality for Unstable Systems in High Energy Physics
• Experimentally Feasible Security Check for n-qubit Quantum Secret Sharing
• Two computable sets of multipartite entanglement measures
• Coherent energy manipulation in single-neutron interferometry

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• A field-theoretical approach to entanglement in neutrino mixing and oscillations
• Tripartite entanglement: Foundations and applications
• Genuine Multipartite Entanglement in the $3$-Photon Decay of Positronium
• Entangled Entanglement: The Geometry of GHZ States
• Tests of Fundamental Quantum Mechanics and Dark Interactions with Low Energy Neutrons -- Extended Version
• Spin-Orbit States of Neutron Wavepackets
• General complex Spin Weak Values obtained in Matter-Wave Interferometer Experiments
• Towards an Einstein-Podolsky-Rosen paradox between two macroscopic atomic ensembles at room temperature
• Disembodiment of arbitrary number of properties in quantum Cheshire cat experiment
• Classification and measurement of multipartite entanglement by reconstruction of correlation tensors on an NMR quantum processor
• Device-Independent Test for Genuine Multipartite Entanglement