Medusa: the networking heart of a trapped ion multi-core quantum computer

NU Quantum、剑桥大学、牛津大学和思科系统公司联手开发集成量子光子技术并将其商业化，旨在实现基于纠缠的多核量子计算集群的联网。美杜莎项目采用集成光子技术开发量子联网解决方案，旨在将小群集囚禁离子量子计算机(TIQC)互联。该项目的动机是TIQC的规模。TIQC是当今性能最好的量子比特技术，然而，人们普遍认为，创建超过50-100个量子比特的TIQC核将是极其困难的。利用光子网络互连小而高效的集群是实现大型、强大计算机的最有前途的解决方案。技术挑战是目前还没有商业上可用的量子网络光子产品-集成开关、纠缠光学和单光子探测器-在所需的波长满足速度和效率的要求。该项目的主要输出是世界上第一个集成的4节点交换纠缠器的原型，其目标是实现多核TIQC所需的速率、损耗和波长的要求。

Nu Quantum, University of Cambridge, University of Oxford, and Cisco Systems come together to develop and commercialise integrated quantum photonic technology aimed at enabling entanglement-based networking of multi-core quantum computing clusters.Project Medusa employs Integrated Photonic technology to develop a Quantum Networking solution aimed at interconnecting small clusters of Trapped Ion Quantum Computers (TIQC).The motivation for this project is the scaling of TIQCs. TIQCs are the best-performing qubit technology today, however it is widely accepted that it will be extremely difficult to create TIQC cores of over 50-100 qubits. Interconnecting small, efficient clusters using photonic networking is the most promising solution to achieve large, powerful computers.The technological challenge is that there currently exist no commercially-available quantum networking photonic products - integrated switches, entanglement optics, and single-photon detectors - which meet the requirements of speed and efficiency, at the required wavelengths.The main output of this project is a world-first prototype of an integrated 4-node switched entangler which targets the necessary requirements of rate, loss, and wavelength to enable multi-core TIQC.