Entanglement autodistillation from particle decays
High Energy Physics - Phenomenology
2024-09-13 v2 High Energy Physics - Experiment
Quantum Physics
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 collider.
Keywords
Cite
@article{arxiv.2401.06854,
title = {Entanglement autodistillation from particle decays},
author = {J. A. Aguilar-Saavedra and J. A. Casas},
journal= {arXiv preprint arXiv:2401.06854},
year = {2024}
}
Comments
LaTeX 9 pages. Expanded discussion, final version in PRL