← Back to papers
Toponium effects on quantum steering and Bell nonlocality of top quarks
J. A. Aguilar-Saavedra, S. Rodríguez-Benítez·June 29, 2026
hep-phhep-exQuantum Physics
AI Breakdown
Get a structured breakdown of this paper — what it's about, the core idea, and key takeaways for the field.
Abstract
We investigate quantum steering and Bell nonlocality in top-quark pair production at the LHC near threshold. The toponium contribution strengthens the spin-singlet component and substantially enhances the entanglement between the two quark spins. With current LHC data, quantum steering appears observable with a statistical significance around $10σ$. For Bell nonlocality, the statistical significance can also be high close to threshold, reaching about $9σ$, although the feasibility of such a measurement will depend crucially on the control of systematic uncertainties.