A measurement-device-independent coherence witness using test-state tomography and decoy states is proposed and demonstrated in a time-bin optical system, yielding a coherence lower bound of 0.25 per detected signal.
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Quantum Coherence Witness with Untrusted Measurement Devices
A measurement-device-independent coherence witness using test-state tomography and decoy states is proposed and demonstrated in a time-bin optical system, yielding a coherence lower bound of 0.25 per detected signal.