Minimum-Cardinality Genuinely Unextendible Product Basis in Three Qutrits

Researchers resolve a long-standing open question by constructing an explicit three-qutrit GUPB with 14 states—the minimum cardinality in the smallest tripartite space where GUPBs exist. The construction demonstrates PPT bound-entangled states and strong quantum nonlocality wi...

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https://iq.fp2.dev/D1CeQ