Feasibility of Quantum Communications in Aquatic Scenarios

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Exchanging information in the aquatic environment represents a challenging but yet necessary task for example in military and scientific applications. Quantum
cryptography is an already available solution able to guarantee information the oretic secure communication in multiple environment, i.e. free-space, fiber and
space link. Yet, the implementation of quantum communications in the aquatic scenario is still a relatively new and unexplored field of research. This paper
provides a feasibility analysis of various quantum key distribution protocols simulated in the water medium, by performing an evaluation of their secret key
rate, external noise sources and wind effect on the surface of the water. Three different links are considered: line-of-sight, non line-of-sight and free-space to
underwater channels. The outcomes of this analysis suggest that underwater quantum communication can be implemented by adopting several protocols in
all three scenario
Original languageEnglish
Number of pages32
Publication statusAccepted/In press - 2020

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