3 papers
quant-ph2026
End-to-End QKD Using LEO Satellite Networks
Sumit Chaudhary, Baqir Kazmi, Janis Nötzel
We propose a satellite-based Quantum Key Distribution (QKD) network that enables global-scale, end-to-end secure key exchange without relying on trusted intermediate nodes. The net…
quant-ph2024
Distance-Security Tradeoffs for Repeaterless End-to-End QKD Networks
Sumit Chaudhary, Davide Li Calsi, JinHyeock Choi +2
Quantum Key Distribution (QKD) offers provably secure, information-theoretic key exchange, but in long-distance scenarios without quantum repeaters, Trusted Nodes (TNs) are commonl…
quant-ph2024
Robustness of WDM technique for the co-propagation of quantum with classical signals in an optical fiber
Sumit Chaudhary, Shahram Dehdashti, Igor Litvin +1
Many quantum communication systems operate based on weak light pulses which by design are assumed to operate in isolation from regular data traffic. With the widespread availabilit…