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Quantum Cryptography Security
FSO-QKD protocols under free space losses and device imperfections: a comparative study
arXiv
Authors: Mitali Sisodia, Omshankar, Vivek Venkataraman, Joyee Ghosh
Year
2023
Paper ID
54794
Status
Preprint
Abstract Read
~2 min
Abstract Words
99
Citations
N/A
Abstract
Quantum key distribution (QKD) is a technique to establish a secret key between two parties through a quantum channel. Several QKD protocols have been proposed and implemented over optical fibers or free space links. The main challenge of operating QKD protocols over a free space link is atmospheric losses. In this paper, we have studied and compared the performance of single and entangled photon based QKD protocols by evaluating the quantum bit error rate and secure key rate for terrestrial free-space quantum communication by considering different free-space losses, such as geometrical losses, atmospheric losses as well as device imperfections.
Why This Paper Matters
- This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
- It adds a 2023 reference point for readers tracking recent quantum research.
- Quantum key distribution (QKD) is a technique to establish a secret key between two parties through a quantum channel.
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