3 papers
quant-ph2026
Nondemolition filtering of an embedded cluster-state scar under continuous local monitoring
Ximo Wang, Xi Zhao, Xiayu Sun +6
Identifying a low-entanglement eigenstate inside a many-body spectrum and preserving it during measurement are distinct tasks. We construct an explicit local ring Hamiltonian with…
quant-ph2026
Sparse and weak-measurement certification of graph-edge entanglement in PXP scar wavepackets
Ximo Wang, Yichi Zhang, Qiwei Han +6
An imperfect many-body revival does not by itself certify the entanglement of the returning state. We give a finite-record protocol for graph-edge localizable entanglement along sc…
quant-ph2026
Large Scale Entanglement Structure Detection in 100-Qubit Systems via Local Joint Measurements
Rui Li, Yuhang Wang, Chunxiao Du +5
Identifying the entanglement structure of a many-body quantum state, namely how its constituents partition into unentangled blocks, is a central task in quantum information science…