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

Nu Quantum，剑桥大学，牛津大学，和思科系统公司合作开发和商业化集成量子光子技术，旨在实现多核量子计算集群的基于纠缠的网络。美杜莎项目采用集成光子技术开发量子网络解决方案，旨在互连小型集群的捕获离子量子计算机（TIQC）该项目的动机是扩大TIQC的规模。TIQC是当今性能最好的量子位技术，但人们普遍认为，创建超过50-100个量子位的TIQC核心是非常困难的。利用光子网络连接小型高效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化的量子网络光子产品-集成开关，纠缠光学和单光子探测器-满足速度和效率的要求，该项目的主要成果是世界上第一个集成的4节点交换式纠缠器原型，其目标是实现多核TIQC所需的速率、损耗和波长要求。

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.