2024/02/26 by Sihao Wu, Chen Qian, Wu, Sihao +5 · 2 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Quantum Physics (quant-ph) #Quantum, superfluid, helium dynamics #Radioactive Decay and Measurement Techniques
paper · pdf · doi:10.48550/arxiv.2402.16574
openalex publication_date 2024/02/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The rapid developments of Quantum Information Science (QIS) have opened up new avenues for exploring fundamental physics. Quantum nonlocality, a key aspect for distinguishing quantum information from classical one, has undergone extensive examinations in particles' decays through the violation of Bell-type inequalities. Despite these advancements, a comprehensive framework based on quantum information theory for particle interaction is still lacking. Trying to close this gap, we introduce a generalized quantum measurement description for decay processes of spin-1/2 hyperons. We validate this approach by aligning it with established theoretical calculations and apply it to the joint decay of correlated ΛΛ pairs. We employ quantum simulation to observe the violation of CHSH inequalities in hyperon decays. Our generalized measurement description is adaptable and can be extended to a variety of high energy processes, including decays of vector mesons, J/ψ,ψ(2S)→ΛΛ, in the Beijing Spectrometer III (BESIII) experiment at the Beijing Electron Positron Collider (BEPC). The methodology developed in this study can be applied to quantum correlation and information processing in fundamental interactions.