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quant-ph2026
The cost of direction in quantum Bell certification
Fumin Wang
Certifying a quantum bound can require more information than realizing the correlations that attain it. We show that this distinction becomes unbounded when a proof must condition…
quant-ph2026
Strategic Non-Shareability of Quantum Correlations
Fumin Wang
Correlations distributed by a mediator can be useful for coordination but vulnerable to inheritance by a colluder. We formalize the obstruction to such inheritance as a source-cert…