Three-body Entanglement in Particle Decays

Abstract

Quantum entanglement has long served as a foundational pillar in understanding quantum mechanics, with a predominant focus on two-particle systems. We extend the study of entanglement into the realm of three-body decays, offering a more intricate understanding of quantum correlations. We introduce a novel approach for three-particle systems by utilising the principles of entanglement monotone concurrence and the monogamy property. Our findings highlight the potential of studying deviations from the Standard Model and emphasise its significance in particle phenomenology. This work paves the way for new insights into particle physics through multi-particle quantum entanglement, particularly in decays of heavy fermions and hadrons.

6 pages, 3 figures, a version published in PRL

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Cited by in corpus (8)

• Quantum Information meets High-Energy Physics: Input to the update of the European Strategy for Particle Physics
• Optimizing Entanglement and Bell Inequality Violation in Top Anti-Top Events
• Entanglement and Bell inequality violation in vector diboson systems produced in decays of spin-0 particles
• Genuine Multipartite Entanglement induced by a Thermal Acoustic Reservoir
• Quantum Entanglement is Quantum: ZZ Production at the LHC
• Higher-Order Corrections to Quantum Observables in $h\to W{W}^{\ast }$
• Three-Body Non-Locality in Particle Decays
• Entanglement features in scattering mediated by heavy particles