FET: Small: Spectrally Efficient High-dimensional Quantum Communications in an Integrated Quantum Photonic Platform

FET：小型：集成量子光子平台中的光谱效率高维量子通信

• 批准号: 1907918
• 负责人: Ivan Djordjevic
• 金额: $ 50万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-07-15 至 2023-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1907918&HistoricalAwards=false
• 关键词: FET; Small; Spectrally; Efficient; dimensional

Quantum information processing opens new avenues for next-generation high-precision sensing, high-performance computing, and reliable communications. Entanglement is a unique resource for quantum information processing. Quantum communication is the cornerstone to fully unleash the power of entanglement. On the secure communication front, quantum communication leverages underlying principles of quantum mechanics to realize distribution of keys with verifiable security, known as Quantum Key distribution (QKD). Despite appealing features of quantum communication, a number of fundamental and technical challenges need to be tackled prior to its widespread applications. This project will develop high-dimensional protocols and tailored efficient photonic-integrated circuits to substantially advance scalable, high-rate, and long-haul quantum communications, thus providing solutions to challenges faced in practical deployments. This work enables high spectral efficiency quantum communications so that communication rates can be substantially improved. As such, this project will represent an essential step toward low-cost integrated quantum communication systems that can be mass-produced.High-dimensional quantum communication enables transmitting quantum information in a large Hilbert space, opening promising routes for constructing new quantum error-correcting codes, building efficient quantum repeaters, and high-rate quantum-secured communications. The project seeks to introduce a new framework of quantum communications with high-dimensional entangled-qubits encoded in orthogonal Slepian sequences bases. This approach is highly robust against turbulence effects in free-space optical links and dispersion effects/nonlinearities in fiber-optics channels, thereby improving the quantum communication distance. Generation, processing, and detection of Slepian-states will be implemented in an integrated quantum photonics platform. This project will make possible the development of electronically controlled waveguide Bragg gratings (EC-WBGs) implemented in nonlinear photonic-integrated circuits as a key component employed in the quantum transmitters and receivers for high-dimensional quantum communications. Compared to fiber Bragg gratings, EC-WBGs can be mass fabricated in a photonic-integrated circuit platform, so that quantum information encoded in a large number of mutually unbiased basis can be processed. As such, scalability is significantly improved while substantially reducing the cost. The Slepian-state sources and the photonic-integrated circuits-based EC-WBGs will be integrated to perform quantum communication tasks including high-dimensional entanglement distribution and high-dimensional QKD. This project is dedicated to 1) analyzing high-dimensional quantum communication protocols based on Slepian states; 2) developing entangled and single-photon-level Slepian-state sources and scalable processing units in a photonic-integrated circuit platform; and 3) demonstrating Slepian-state high-dimensional quantum communication systems and testing the developed high-dimensional quantum communication prototypes in a real-world quantum network testbed.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

量子信息处理为下一代高精度传感、高性能计算和可靠通信开辟了新的途径。纠缠是量子信息处理的一种独特资源。量子通信是充分释放纠缠力量的基石。在安全通信方面，量子通信利用量子力学的基本原理来实现具有可验证安全性的密钥分发，称为量子密钥分发（QKD）。尽管量子通信具有吸引人的特点，但在其广泛应用之前，还需要解决一些基本和技术挑战。该项目将开发高维协议和量身定制的高效光子集成电路，以大幅推进可扩展、高速率和长距离量子通信，从而为实际部署中面临的挑战提供解决方案。这项工作实现了高频谱效率的量子通信，从而可以大大提高通信速率。因此，该项目将成为实现低成本、可批量生产的集成量子通信系统的重要一步。高维量子通信可以在大希尔伯特空间中传输量子信息，为构建新的量子纠错码、构建高效的量子中继器和高速率量子保密通信开辟了有希望的途径。该项目旨在引入一种新的量子通信框架，其中高维纠缠量子比特编码在正交Slepian序列中。这种方法对自由空间光链路中的湍流效应和光纤信道中的色散效应/非线性具有高度鲁棒性，从而提高了量子通信距离。Slepian态的生成、处理和检测将在一个集成的量子光子学平台上实现。该项目将使在非线性光子集成电路中实现的电子控制波导布拉格光栅（EC-WBG）的开发成为可能，作为用于高维量子通信的量子发射机和接收机的关键部件。与光纤布拉格光栅相比，EC-WBG可以在光子集成电路平台上批量制造，从而可以处理编码在大量相互无偏基中的量子信息。因此，可扩展性显著提高，同时大幅降低成本。Slepian态源和基于光子集成电路的EC-WBG将被集成以执行量子通信任务，包括高维纠缠分发和高维QKD。该项目致力于1）分析基于Slepian态的高维量子通信协议，2）在光子集成电路平台上开发纠缠单光子Slepian态源和可扩展处理单元;演示Slepian态的高维量子通信系统，并在真实的环境中测试所开发的高维量子通信原型，该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

High-purity pulsed squeezing generation with integrated photonics

利用集成光子学产生高纯度脉冲挤压

• DOI: 10.1103/physrevresearch.3.013199
• 发表时间: 2021
• 期刊: Physical Review Research
• 影响因子: 4.2
• 作者: Cui, Chaohan;Gagatsos, Christos N.;Guha, Saikat;Fan, Linran
• 通讯作者: Fan, Linran

Proposal for Slepian-States-Based DV- and CV-QKD Schemes Suitable for Implementation in Integrated Photonics Platforms

• DOI: 10.1109/jphot.2019.2923749
• 发表时间: 2019-08-01
• 期刊: IEEE PHOTONICS JOURNAL
• 影响因子: 2.4
• 作者: Djordjevic, Ivan B.

Simultaneous type-I and type-II phase matching for second-order nonlinearity in integrated lithium niobate waveguide

• DOI: 10.1364/oe.430438
• 发表时间: 2021-08-02
• 期刊: OPTICS EXPRESS
• 影响因子: 3.8
• 作者: Briggs, Ian;Hou, Songyan;Fan, Linran
• 通讯作者: Fan, Linran

Exclusion zone analysis on secret key distillation over a realistic satellite-to-satellite free-space channel

现实卫星间自由空间信道上密钥蒸馏的禁区分析

• DOI: 10.1364/jocn.461878
• 发表时间: 2022
• 期刊: Journal of Optical Communications and Networking
• 影响因子: 5
• 作者: Pan, Ziwen;Djordjevic, Ivan B.
• 通讯作者: Djordjevic, Ivan B.

Joint Probabilistic-Nyquist Pulse Shaping for LDPC-coded 8-PAM Signal in DWDM Data Center Communications

DWDM 数据中心通信中 LDPC 编码 8-PAM 信号的联合概率-奈奎斯特脉冲整形

• 发表时间: 2019
• 期刊: Applied sciences
• 作者: Han, Xiao;Yang, Migwei;Djordjevic, Ivan B;Yue, Yang;Wang, Qiang;Qu, Zhen;Anderson, Jon
• 通讯作者: Anderson, Jon