Building and exploiting high quantum volume ion-trap processors

阱离子装置在少量量子位上展示了构建量子计算机所需的所有构件，其精度优于任何竞争对手的技术。该项目的目标是开发和利用世界一流的中等规模量子计算机，凭借高保真的任意量子位到任意量子位纠缠门以及低错误率，将以目前在任何其他架构中无法实现的性能水平运行。在学习过程中，我们将开发和评估技术，以实现对小量子位寄存器的高保真控制，并在保持纠缠保真度的同时接近50量子位水平。该项目将涉及实验和理论工作，包括：-建立一个使用新开发的捕获离子量子比特的设备-获得对单个原子离子的精确相干控制-开发和应用新的理论工具来理解和优化多量子比特耦合

Trapped-ion devices have demonstrated, on a small number of qubits, all the building-blocks required to build a quantum computer with precision better than any competing technology. The aim of this project is to develop and utilise a world-class intermediate-scale quantum computer that, by virtue of high-fidelity any-qubit-to-any-qubit entangling gates along with low error rates, will operate at a performance level currently unachievable in any other architecture.Over the course of the studentship, we will develop and evalualte techniquesto achieve high fidelity control of small registers of qubits, and approach the 50-qubit level while maintain entanglement fidelities beyond the state of the art.The project will involve both experimental and theoretical work, including:- building an apparatus that uses a newly developed type of trapped-ion qubit- obtaining precision coherent control over individual atomic ions- developing and applying new theoretical tools to understand and optimise many-qubit couplings