Author

Krishan Joshi

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Preprint Aug 2026

Photon-efficient quantum repeater chains via hyperentanglement-assisted purification

A closed-form end-to-end fidelity recursion is derived that embeds single-segment DAEPP into the BDCZ scheme and gives a strict resource lower bound for any BDCZ baseline utilising BBPSSW purification to match DAHR's per-segment effective fidelity.

Vinay Kumar, Krishan Joshi, C. Cicconetti · 0 citations