A universal electronics platform for quantum applications & cryogenic optoelectronics

这个博士项目将设计一个通用的、超高性能的电子平台，以加速量子和经典光学技术的发展。用于量子计算、低温光电子学和量子传感的革命性设备将通过这个适应性强、足够的电子系统进行控制。这个跨学科的项目将提供一个可扩展的控制系统，以在一个可扩展的光子学平台内证明有价值的工业应用。该项目属于EPSRC量子技术、量子设备、组件和系统研究领域。大约十年前，基于光子的通用量子计算机被认为是不可行的，因为集成单光子源、探测器和控制测量前馈开销的复杂性。现代的基于测量的计算方案表明，大幅减少这些开销是可能的，布里斯托尔的研究已经极大地推进了这项技术。前馈技术测量实时光子状态，以补偿剩余的量子不确定性。这一功能从根本上依赖于超高速、集成的飞行时间电子控制。硅互补金属氧化物半导体(CMOS)经典电子学可以放大光电探测器的测量，并在低温环境条件下提供系统智能。模块化专用集成电路(ASIC)将从商用CMOS电子学发展到读出单光子探测器信号、执行顺序逻辑操作和驱动电光执行器。CMOS在低温下工作，数字信号几乎没有变化，但需要进一步精确开发模拟测量和来自光电接口的调制信号。这个雄心勃勃的项目有一个强大的计划，以防自然工程开发风险。同时，现成的集成电路(IC)和现场可编程门阵列(FGA)组件将用于务实地构建定制印刷电路板(PCB)，以实现所需的功能，使其尽可能实现最佳运行。该系统将通过超导纳米线探测器和实验GeSn型雪崩光电二极管与光子芯片充分对接。这些电路将驱动硅光子芯片中的非线性克尔调制器和传统载流子色散调制器等电光设备。该项目将由来自历史上世界领先的布里斯托尔qet实验室光子组的Josh Silverstone博士和Edmund Harbord博士共同监督，该实验室设在电气和电子工程部。

This PhD project will engineer a universal, ultra-high-performance electronics platform to accelerate quantum and classical optics technological development. Revolutionary devices for quantum computing, cryogenic optoelectronics, and quantum sensing will be controlled through this adaptable, adequate electronic system. This interdisciplinary project will deliver a scalable control system to prove valuable industrial applications within a scalable photonics platform. This project falls within the EPSRC Quantum Technologies, Quantum Devices, Components and Systems research area.Nearly a decade ago, photon-based universal quantum computers were thought unfeasible due to the complexity of integrating single-photon sources, detectors, and control measurements feed-forward overheads. Modern measurement-based computing schemes suggest that considerably reducing these overheads is possible, and research at Bristol has drastically advanced this technology. Feed-forward techniques measure real-time photon states to compensate for the remaining quantum uncertainty. This functionality fundamentally depends on ultrafast, integrated time-of-flight electronic control. Silicon complementary metal-oxide-semiconductor (CMOS) classical electronics can amplify optoelectronic detector measurements and provide system intelligence within the cryogenic environmental conditions. Modular application-specific integrated circuits (ASICs) will be developed from commercial CMOS electronics to read-out single-photon detector signals, perform sequential logic operations, and drive electro-optic actuators. CMOS works at cryogenic temperatures with little changes in digital signals but requires further precise development for analogue measurement and modulation signals from optoelectronic interfaces. This ambitious project has a robust plan in case of natural engineering development risks. In parallel, off-the-shelf integrated circuits (ICs) and field-programmable gate arrays (FPGAs) components will be used to pragmatically build custom printed circuit boards (PCBs) to achieve the desired functionality to their best possible operation. The system will adequately interface with the photonic chips through superconducting nanowire detectors and experimental GeSn avalanche photodiodes. The circuits will drive electro-optical devices such as nonlinear Kerr modulators and traditional carrier dispersion modulators within silicon photonic chips. This project will be co-supervised by Dr Josh Silverstone and Dr Edmund Harbord from the Photonics group of the historical world-leading Bristol QET Labs, based in the Electrical and Electronic Engineering Department.