Author

Yiyu Zhou

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Preprint Jul 2026

Quantum entanglement within quarkonium

We investigate quark-antiquark entanglement in heavy quarkonium within a nonperturbative light-front Hamiltonian framework. By tracing over the antiquark degrees of freedom in the hadronic state vector, we construct the reduced density matrix of the quark subsystem and compute the associated von Neumann entropy. For sp...

Wenyu Zhang, Yiyu Zhou, Yang Li et al. · 1 citation