3 papers
quant-ph2026
Multiscale Schmidt-Spectrum Bounds for High-Dimensional Entanglement: Geometric Measures and Schmidt-Number Witnesses
Liang Xiong, Zhixiang Jin, Yanling Wang +3
High-dimensional bipartite entanglement depends on how probability is distributed across the Schmidt spectrum, whereas a single reference-state fidelity resolves only one spectral…
quant-ph2026
A low order Bargmann invariant hierarchy for set coherence
Yan-Ling Wang
Set coherence is a basis-independent relational form of quantum coherence: a finite family of quantum states is set incoherent exactly when all its members are diagonal in one comm…
quant-ph2026
Simultaneous Detection of High-Dimensional Entanglement for Two Unknown Quantum States
Mao-Sheng Li, Chang-Yue Zhang, Zheng Zheng +7
The state overlap, quantified via $\tr[ρσ]$, is a metric widely used to assess the closeness between two quantum states and . Although global state overlap alone does not di…