Modular source for near-infrared quantum communication

IF 5.8 2区 物理与天体物理 Q1 OPTICS
Federico Berra, Costantino Agnesi, Andrea Stanco, Marco Avesani, Sebastiano Cocchi, Paolo Villoresi, Giuseppe Vallone
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引用次数: 0

Abstract

We present a source of states for Quantum Key Distribution (QKD) based on a modular design exploiting the iPOGNAC, a stable, low-error, and calibration-free polarization modulation scheme, for both intensity and polarization encoding. This source is immune to the security vulnerabilities of other state sources such as side channels and some quantum hacking attacks. Remarkably, our intensity modulation scheme allows full tunability of the intensity ratio between the decoy and signal states, and mitigates patterning effects. The source was implemented and tested at the near-infrared optical band around 800 nm, of particular interest for satellite-based QKD. Furthermore, the modularity of the source simplifies its development, testing, and qualification, especially for space missions. For these reasons, our work paves the way for the development of the second generation of QKD satellites that can guarantee excellent performances at higher security levels.

近红外量子通信模块源
我们提出了一种基于模块化设计的量子密钥分发(QKD)状态源,利用iPOGNAC,一种稳定,低误差,无需校准的偏振调制方案,用于强度和偏振编码。该源不受其他状态源(如侧信道)的安全漏洞和一些量子黑客攻击的影响。值得注意的是,我们的强度调制方案允许诱饵和信号状态之间的强度比完全可调,并减轻图案效应。该源在800 nm左右的近红外波段进行了实现和测试,这对基于卫星的QKD特别感兴趣。此外,源的模块化简化了其开发,测试和鉴定,特别是在空间任务中。由于这些原因,我们的工作为第二代QKD卫星的发展铺平了道路,这些卫星可以在更高的安全级别上保证出色的性能。
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来源期刊
EPJ Quantum Technology
EPJ Quantum Technology Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
7.70
自引率
7.50%
发文量
28
审稿时长
71 days
期刊介绍: Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. EPJ Quantum Technology covers theoretical and experimental advances in subjects including but not limited to the following: Quantum measurement, metrology and lithography Quantum complex systems, networks and cellular automata Quantum electromechanical systems Quantum optomechanical systems Quantum machines, engineering and nanorobotics Quantum control theory Quantum information, communication and computation Quantum thermodynamics Quantum metamaterials The effect of Casimir forces on micro- and nano-electromechanical systems Quantum biology Quantum sensing Hybrid quantum systems Quantum simulations.
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