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Conferences > FiO > 2022 > JW4B > JW4B.29

Effect of Pulse-shape Mismatch on the Security of Measurement-device-independent QKD Protocols

Shashank Kumar Ranu, Anil Prabhakar, and Prabha Mandayam

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Abstract

Pulse-width mismatch, primarily caused by channel asymmetry, affects the visibility of Hong-Ou-Mandel (HOM) interference. We show that a channel asymmetry of 176.5 km reduces HOM visibility to 0.37, rendering a polarization-based MDI-QKD protocol completely insecure.

© 2022 The Author(s)

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