2 papers
quant-ph2026
Robust Quantum Extremal Numbers
Wanchen Zhang, Zicheng Han, Xiande Zhang
Absolutely maximally entangled states require every reduction of at most half of the parties to be maximally mixed, a condition that is both rigid and often impossible for qubit sy…
quant-ph2024
Extremal Maximal Entanglement
Wanchen Zhang, Yu Ning, Fei Shi +1
A pure multipartite quantum state is called absolutely maximally entangled if all reductions of no more than half of the parties are maximally mixed. However, an -qubit absolute…