Continuous-mode quantum key distribution with digital signal processing
نویسندگان
چکیده
Abstract Continuous-variable quantum key distribution (CVQKD) offers the specific advantage of sharing keys remotely by use standard telecom components, thereby promoting cost-effective and high-performance metropolitan applications. Nevertheless, introduction high-rate spectrum broadening has pushed CVQKD from a single-mode to continuous-mode region, resulting in adoption modern digital signal processing (DSP) technologies recover quadrature information states. However, security proof DSP involving multi-point is missing step. Here, we propose generalized method analyzing state linear via temporal modes theory. The construction reducing scenarios. proposed practicality oriented analysis paves way for building classical compatible CVQKD.
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ژورنال
عنوان ژورنال: npj Quantum Information
سال: 2023
ISSN: ['2056-6387']
DOI: https://doi.org/10.1038/s41534-023-00695-8