Violating Bell inequalities using photon path encoding

Wed, 12 Nov 2025 00:00:00 +0000

In this work we investigate the use of photon path entanglement for the violation of a Bell inequality. The advantage of this encoding is that Bell pairs can be distributed with a rate scaling as the square root of the transmitivity of the channel in an heralding protocol, instead of a linear scaling in e.g. polarisation-based schemes. The drawback is that it is hard to implement generic Pauli measurements. We explore different ways to implement tackle this issue.

Ahmad Hasan | LIP6 - Équipe QI

Violating Bell inequalities using photon path encoding