ESCHER: Establishing Supply Chains for Emergent Quantum Computers

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A primary goal of the UK National Quantum Technology Programme is to target key milestones on the journey to practical, universal quantum computing. The partners of this project are working together to develop commercial supply chains for key components, subsystems and devices for emergent quantum computing and networking platforms. The proposed project complements the work programme for the national hub in Networked Quantum Information Technologies (NQIT) by developing the industrial role in the efforts of the national programme. The planned developments will help the industrial partners establish a native supply chain for critical components in the roadmap for the Q20:20 engine and beyond. The envisaged impact of fault tolerant quantum computing will have global significance and strengthening the UK's industrial participation in this area and at this stage will ensure that researchers benefit from hardware capable of accelerating their own work. This value proposition will enable the companies to benefit immediately.The Sussex team will focus on the development of a stable, low-noise DC electronics system for addressing scalable ion trap microchips which form part of individual quantum computer modules. The team developed the specifications for the DC system and has developed significant expertise in the development of low-noise DC supplies which will be shared with the project lead MSquared Lasers. Such electronics will form one of the components for a trapped ion quantum computer prototype and as such will form an important part of the supply chain for quantum computing. The team is in the process ofconstructing a quantum computer prototype at the University of Sussex with the explicit aim to commercialize the full range of technologies involved. The team has recently published the first practical blueprint for the construction of a universal quantum computer which identifies the electronics developed here as one of the key components.