51 citations · 557 across the 38 of their papers we have counts for
4 papers · 1 filter
Genuine Multipartite Entanglement in Time
Simon Milz, Cornelia Spee, Zhen-Peng Xu +3
While spatial quantum correlations have been studied in great detail, much less is known about the genuine quantum correlations that can be exhibited by temporal processes. Employi…
State-independent quantum contextuality with projectors of nonunit rank
Zhen-Peng Xu, Xiao-Dong Yu, Matthias Kleinmann
Virtually all of the analysis of quantum contextuality is restricted to the case where events are represented by rank-one projectors. This restriction is arbitrary and not motivate…
Structure of dimension-bounded temporal correlations
Yuanyuan Mao, Cornelia Spee, Zhen-Peng Xu +1
We analyze the structure of the space of temporal correlations generated by quantum systems. We show that the temporal correlation space under dimension constraints can be nonconve…
Proof of the Peres conjecture for contextuality
Zhen-Peng Xu, Jing-Ling Chen, Otfried Gühne
A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In short, it states that quantum mechanics cannot be reconciled with classical models that a…