Operational bounds on state exclusion (not only identification) plus a three-setting retained-key protocol certify positive SDI-QKD rates down to nearly vanishing preparation visibility.
(C5) This definition is forced by the measurement post- processing: Bob’s classical outcome is kept, and the post- measurement quantum system on Eve’s side is traced over B
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Semi-Device-Independent Quantum Key Distribution from Operational Assumptions
Operational bounds on state exclusion (not only identification) plus a three-setting retained-key protocol certify positive SDI-QKD rates down to nearly vanishing preparation visibility.