利用立方体卫星进行下行链路量子密钥分发和无密钥通信的光学有效载荷设计

IF 5.8 2区 物理与天体物理 Q1 OPTICS EPJ Quantum Technology Pub Date : 2024-07-30 DOI:10.1140/epjqt/s40507-024-00254-w
Pedro Neto Mendes, Gonçalo Lobato Teixeira, David Pinho, Rui Rocha, Paulo André, Manfred Niehus, Ricardo Faleiro, Davide Rusca, Emmanuel Zambrini Cruzeiro
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引用次数: 0

摘要

量子密钥分发成本高昂,目前在空间应用中性能较低。其他更先进的协议可以为这一问题提供潜在的实用解决方案。在这项工作中,提出了一个初步的光学有效载荷设计,使用商用现成元件在 3U 立方体卫星中实现量子通信下行链路。研究表明,这种量子态发射器可以在卫星和地面站之间建立两种类型的量子通信:量子密钥分发和量子无钥私人通信。数值模拟显示了这两种协议方案的可行性及其性能。对于简化的 BB84,发现天顶处的最大秘钥速率约为 80 kHz,最小 QBER 略高于 0.07%,而对于量子无钥私人通信,则实现了 700 MHz 的私人速率。这一设计可作为实施新型量子通信协议的平台,从而提高空间量子通信的性能。
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Optical payload design for downlink quantum key distribution and keyless communication using CubeSats

Quantum key distribution is costly and, at the moment, offers low performance in space applications. Other more recent protocols could offer a potential practical solution to this problem. In this work, a preliminary optical payload design using commercial off-the-shelf elements for a quantum communication downlink in a 3U CubeSat is proposed. It is shown that this quantum state emitter allows the establishment of two types of quantum communication between the satellite and the ground station: quantum key distribution and quantum keyless private communication. Numerical simulations are provided that show the feasibility of the scheme for both protocols as well as their performance. For the simplified BB84, a maximum secret key rate of about 80 kHz and minimum QBER of slightly more than 0.07% is found, at the zenith, while for quantum private keyless communication, a 700 MHz private rate is achieved. This design serves as a platform for the implementation of novel quantum communication protocols that can improve the performance of quantum communications in space.

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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.
期刊最新文献
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