Multi-Hop Quantum Key Distribution with Passive Relays over Underwater Turbulence Channels
Absorption, scattering, and turbulence experienced in underwater channels severely limit the range of quantum communications. In this paper, to overcome range limitations, we investigate a multi-hop underwater quantum key distribution (QKD) where intermediate nodes help the key distribution between...
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description | Absorption, scattering, and turbulence experienced in underwater channels severely limit the range of quantum communications. In this paper, to overcome range limitations, we investigate a multi-hop underwater quantum key distribution (QKD) where intermediate nodes help the key distribution between the source and destination nodes. We consider deployment of passive-relays which simply redirect the qubits to the next relay node or receiver without any measurement. Based on near-field analysis, we present the performance of relay-assisted QKD scheme in clear ocean under different atmospheric conditions. We further investigate the effect of system parameters (aperture size and detector field-of-view) on the achievable distance. |
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subjects | Channels Field of view Nodes Physics - Quantum Physics Quantum cryptography Qubits (quantum computing) Relay Turbulence Underwater |
title | Multi-Hop Quantum Key Distribution with Passive Relays over Underwater Turbulence Channels |
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