Entanglement autodistillation from particle decays

2024/01/12 by J. A. Aguilar–Saavedra, J.A. Casas, Aguilar-Saavedra, J. A. +1 · 5 citations
Physics and Astronomy · Computer Science · #Particle physics theoretical and experimental studies #Distributed and Parallel Computing Systems #Dark Matter and Cosmic Phenomena

paper · pdf · doi:10.48550/arxiv.2401.06854

Abstract

Particle decays do not constitute a spin ``measurement'' in the quantum-mechanical sense, but still modify the spin state, in particular for an entangled system. We show that for a spin-entangled pair of particles the entanglement of the system can increase after the decay of one particle. This unique phenomenon has no equivalent for stable particles and could be observable in top pair production at a high-energy polarized e⁺ e^- collider.

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