Secure Quantum Summation with Two Degrees of Freedom United as a Single Entity

IF 1.3 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY
Yan-Feng Lang, Cheng-Cheng Cai
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Abstract

Secure quantum summation (SQS) can summate private data and meanwhile keep their privacy. It plays an essential role in the field of secure multi-party computation. There are a couple of SQS protocols whose quantum resource is single photons in both polarization and spatial-mode degrees of freedom. This kind of SQS protocols has a point in common that they use the two degrees of polarization and spatial-mode in the same way. Instead, this paper taps them in an innovative method, they fulfilling different tasks and forming an organic whole in quantum communication. Compared to the ready sister protocols, this method brings about great benefits: not only maintaining the original communication capacity, but also making the presented protocol simpler and more secure without the need of pre-shared keys to block the intercept-resend attack, because this work makes a full use of its inherent security attributes. Consequently, this work can be considered as a more ideal SQS.

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来源期刊
CiteScore
2.50
自引率
21.40%
发文量
258
审稿时长
3.3 months
期刊介绍: International Journal of Theoretical Physics publishes original research and reviews in theoretical physics and neighboring fields. Dedicated to the unification of the latest physics research, this journal seeks to map the direction of future research by original work in traditional physics like general relativity, quantum theory with relativistic quantum field theory,as used in particle physics, and by fresh inquiry into quantum measurement theory, and other similarly fundamental areas, e.g. quantum geometry and quantum logic, etc.
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