QII-TAQS: All-Photonic Quantum Network

QII-TAQS：全光子量子网络

• 批准号: 1936345
• 负责人: Alexander Gaeta
• 金额: $ 144万
• 依托单位: Columbia University
• 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: 2019-09-15 至 2024-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1936345&HistoricalAwards=false
• 关键词: QII; TAQS; Photonic; Quantum; Network

Development of quantum computers and networks will require large-scale connections at the quantum level between many particles. These special connections between the particles, known as qubit entanglement, are essential for applications in quantum computing, communications, and sensing. Approaches that have been intensely studied to generate such entanglement utilize neutral atoms, ions, or superconducting circuits and rely on strong qubit-qubit interactions. Successful entanglement of these matter-based qubits is challenging due to deleterious interactions with the environment. Here an alternative approach is explored using a photonic-chip platform based on silicon nitride to realize highly entangled photon states. Such a platform has significant advantages over other photonic-chip materials such as silicon by offering record low losses in an integrated platform. Realization of an all-photonic platform for deterministic generation of photonic states will have broad impact across all quantum information technologies. For example, such a scheme would enable measurement-based universal computation, where computation occurs by performing single-qubit measurements on a highly-entangled resource state.This research project aims to create an integrated photonics platform that can generate highly-entangled states of light in near-deterministic fashion at high rates and with high fidelity. These highly-entangled states will serve as scalable photonic building blocks for generating cluster states for quantum computers and quantum networks. The platform will be based on a nonlinear multiplexing scheme in the frequency domain that allows overcoming the poor scaling with loss associated with spatial and temporal multiplexing. The rate of entangled photon generation will be dramatically increased by leveraging recent advances in massively parallel photonic on-chip devices that can (1) generate and convert photons within a well-defined spectral grid with high efficiency and (2) store light on-demand for timescales on the order of hundreds of nanoseconds with high efficiency, using massively parallel micron-size devices. It is projected that the generation rate of entangled Bell pairs can be increased over what is currently possible by at least two orders of magnitude, from 1 microsecond to 200 microseconds. Ultimately, the work aims to lead to a scalable platform for which the generation rate of entangled photons scales only polynomially (as opposed to exponentially) with the number of resources (detectors, resonators, etc.).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.

量子计算机和网络的发展将需要许多粒子之间在量子水平上的大规模连接。 粒子之间的这些特殊连接，称为量子比特纠缠，对于量子计算，通信和传感的应用至关重要。 已经被深入研究的产生这种纠缠的方法利用中性原子，离子或超导电路，并依赖于强量子比特-量子比特相互作用。 由于与环境的有害相互作用，这些基于物质的量子比特的成功纠缠具有挑战性。 在这里，另一种方法是探索使用基于氮化硅的光子芯片平台，以实现高度纠缠的光子态。 这种平台通过在集成平台中提供创纪录的低损耗而比其他光子芯片材料（例如硅）具有显著优势。 实现确定性产生光子态的全光子平台将对所有量子信息技术产生广泛影响。 例如，这种方案将实现基于测量的通用计算，其中计算通过对高度纠缠的资源状态执行单量子比特测量来进行。本研究项目旨在创建一个集成光子学平台，该平台可以以高速率和高保真度以近确定性方式生成光的高度纠缠态。 这些高度纠缠态将作为可扩展的光子构建块，用于为量子计算机和量子网络生成簇态。 该平台将基于频域中的非线性多路复用方案，该方案允许克服与空间和时间多路复用相关联的具有损耗的不良缩放。 通过利用大规模并行光子片上器件的最新进展，纠缠光子产生的速率将显著增加，所述大规模并行光子片上器件可以（1）在明确定义的光谱网格内以高效率产生和转换光子，以及（2）使用大规模并行微米尺寸器件以高效率按需存储光达数百纳秒量级的时间尺度。 据预测，纠缠贝尔对的产生率可以比目前可能的增加至少两个数量级，从1微秒到200微秒。 最终，这项工作的目的是导致一个可扩展的平台，其中纠缠光子的生成速率仅与资源（探测器，谐振器等）的数量呈多项式（而不是指数）。该奖项反映了NSF的法定使命，并被认为是值得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的支持。

项目成果

Loading short pulses into long lifetime cavities

将短脉冲加载到长寿命腔体中

• DOI: 10.1364/cleo_qels.2022.fm5b.3
• 发表时间: 2022
• 期刊: CLEO: QELS_Fundamental Science 2022
• 作者: Hinney, Jakob;Dave, Utsav D.;Molina, Andres Gil;Ji, Xingchen;Lipson, Michal
• 通讯作者: Lipson, Michal

High-Efficiency On-Chip Frequency Conversion in the Telecom Band

电信频段的高效片上变频

• DOI: 10.1364/cleo_si.2022.sm4k.2
• 发表时间: 2022
• 期刊: CLEO: Science and Innovations 2022
• 作者: Zhao, Yun;Kim, Bok Young;Ji, Xingchen;Okawachi, Yoshitomo;Lipson, Michal;Gaeta, Alexander L.
• 通讯作者: Gaeta, Alexander L.

Picosecond-resolution single-photon time lens for temporal mode quantum processing

用于时间模式量子处理的皮秒分辨率单光子时间透镜

• DOI: 10.1364/optica.439827
• 发表时间: 2022
• 期刊: Optica
• 影响因子: 10.4
• 作者: Joshi, Chaitali;Sparkes, Ben M.;Farsi, Alessandro;Gerrits, Thomas;Verma, Varun;Ramelow, Sven;Nam, Sae Woo;Gaeta, Alexander L.
• 通讯作者: Gaeta, Alexander L.

Frequency-Domain Quantum Interference with Correlated Photons from an Integrated Microresonator

• DOI: 10.1103/physrevlett.124.143601
• 发表时间: 2020-04-06
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Joshi, Chaitali;Farsi, Alessandro;Gaeta, Alexander L.
• 通讯作者: Gaeta, Alexander L.

Guiding light at criticality and beyond

临界及临界后的指路明灯

• DOI: 10.1364/cleo_qels.2021.fm1m.4
• 发表时间: 2021
• 期刊: CLEO: QELS_Fundamental Science 2021
• 作者: Rodrigues, Janderson R.;Dave, Utsav D.;Mohanty, Aseema;Ji, Xingchen;Datta, Ipshita;Gutierrez-Jauregui, Ricardo;Almeida, Vilson R.;Ansejo-Garcia, Ana;Lipson, Michal
• 通讯作者: Lipson, Michal