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Yu-Jie Zhang

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Preprint Oct 2026

Complexity of self-consistent entanglement certification

In recent work Phys. Rev. X 16, 031057 (2026), we proposed a self-consistent approach to entanglement certification based on generalized noncontextuality. It requires no prior characterization of the measurement devices and, given access to all local measurements, can certify every entangled state in a Bell circuit. He...

Yu-Jie Zhang · 0 citations
Preprint Sep 2026

Quantum key distribution using generalized contextuality against post-quantum eavesdroppers

Bell nonlocality allows secret key to be certified without trusting the internal operation of the devices, and even against eavesdroppers constrained only by the no-signaling principle. We ask whether generalized contextuality, a notion of nonclassicality available in prepare-and-measure experiments on a single system,...

Daniel Centeno, Roberto D. Baldijão, Maria Ciudad Alan'on et al. · 0 citations

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