2 papers
quant-ph2026
Entanglement Quantification via Symmetric Extensions: A Resource Theory Hierarchy
Enmin Shao, Lin Chen, Huixia He
We introduce a hierarchy of entanglement measures Ek based on k-symmetric PPT extensions. Each Ek, defined via a minimal eigenvalue shift and computed by semidefinite programming,…
quant-ph2026
Quantifying Entanglement via Quantum Wasserstein Distances
Enmin Shao, Lin Chen, Huixia He
We propose a bipartite entanglement measure defined as the minimal order-1 quantum Wasserstein distance from a state to the set of separable states. Owing to the universal data-pro…