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Building and exploiting a high-performance monolithic trapped-ion quantum computer

构建和开发高性能单片俘获离子量子计算机

基本信息

批准号：
MR/S03238X/1
负责人：
Christopher Ballance
金额：
$ 195.88万
依托单位：
University of Oxford
依托单位国家：
英国
项目类别：
Fellowship
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=MR%2FS03238X%2F1
关键词：
Building exploiting performance monolithic trapped

项目摘要

This project is aimed at developing the world's highest-performance quantum processor - a new form of computer that manipulates information in a vastly different and more powerful way than a conventional computer. Sufficiently large quantum computers can solve problems intractable on any type of non-quantum ("classical") hardware. For example, a quantum computer would be able to simulate the physics or chemistry of complex problems impossible to model on a classical super-computer. This would profoundly impact scientific research, and allow access to regimes that are currently beyond experimental or theoretical reach; for example in quantum chemistry, or condensed matter physics. Despite 20 years of experimental work on quantum computing, a quantum processor with such computational power has remained beyond the reach of experiments. Recent progress in trapped-ion techniques means that such a machine is now attainable in the time-frame of this project. In recent years a variety of technologies has been used to show that the building blocks of a quantum computer can work well enough to perform useful real-world computations. The challenge now, for all technologies, is to develop systems with a large number of qubits (quantum bits, the basic unit of information in a quantum computer) possessing the qubit-to-qubit connectivity which is essential for quantum computing, while minimizing operation errors. The eventual aim for this field is to build processors containing hundreds of thousands of effectively perfect qubits all connected by high precision quantum logic gates. Such a full scale quantum computer will change the 21st century in the same way as the classical computer changed the 20th century. However, building a processor this complex remains a formidable engineering challenge which will require significant resources and last for decades.The focus of this project is instead to try and aim for a realistic near-term goal. Using trapped atomic ions as qubits, and taking advantage of the high fidelity and high connectivity gates already proven with these qubits, we aim to make a processor with at least 50 qubits, with gate errors low enough to perform circuits of thousands of gates. Such an intermediate scale quantum processor is beyond the ability of even our most powerful classical supercomputers to mimic. With this processor, we aim to demonstrate the potential quantum computers have to solve real-world problems with a "quantum advantage". In addition, we aim to develop and to test noise-resilient methods to extract maximum performance from intermediate-scale processors, such as error mitigation protocols and hybrid quantum-classical algorithms. However, as the history of classical computing has shown us, with the ability to develop and to prototype new techniques on real quantum hardware the largest rewards may well come from unexpected directions. This project will deliver that hardware.

该项目旨在开发世界上性能最高的量子处理器——一种新型计算机，它以与传统计算机截然不同且更强大的方式处理信息。足够大的量子计算机可以解决任何类型的非量子（“经典”）硬件上棘手的问题。例如，量子计算机将能够模拟经典超级计算机无法建模的复杂问题的物理或化学。这将深刻影响科学研究，并允许进入目前超出实验或理论范围的制度；例如在量子化学或凝聚态物理学中。尽管量子计算的实验工作已经进行了20年，但具有如此计算能力的量子处理器仍然超出了实验的范围。俘获离子技术的最新进展意味着这样的机器现在可以在该项目的时间内实现。近年来，各种技术已被用来证明量子计算机的构建模块可以很好地工作以执行有用的现实世界计算。对于所有技术来说，现在的挑战是开发具有大量量子位（量子位，量子计算机中信息的基本单位）的系统，这些系统具有量子计算所必需的量子位到量子位的连接性，同时最大限度地减少操作错误。该领域的最终目标是构建包含数十万个有效完美量子位的处理器，所有这些量子位均通过高精度量子逻辑门连接。这样的全尺寸量子计算机将像经典计算机改变 20 世纪一样改变 21 世纪。然而，构建如此复杂的处理器仍然是一项艰巨的工程挑战，需要大量资源并持续数十年。该项目的重点是尝试实现现实的近期目标。使用捕获的原子离子作为量子位，并利用这些量子位已经证明的高保真度和高连接性门，我们的目标是制造一个具有至少 50 个量子位的处理器，门错误足够低，足以执行数千个门的电路。这种中等规模的量子处理器甚至超出了我们最强大的经典超级计算机的模仿能力。通过该处理器，我们的目标是展示量子计算机具有以“量子优势”解决现实世界问题的潜力。此外，我们的目标是开发和测试抗噪声方法，以从中等规模处理器中提取最大性能，例如错误缓解协议和混合量子经典算法。然而，正如经典计算的历史向我们展示的那样，凭借在真正的量子硬件上开发和原型化新技术的能力，最大的回报很可能来自意想不到的方向。该项目将提供该硬件。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Latest developments in the Sinara open hardware ecosystem

Sinara开放硬件生态系统的最新进展

DOI：
10.1109/qce53715.2022.00123
发表时间：
2022
期刊：
影响因子：
0
作者：
Kulik P
通讯作者：
Kulik P

High-Rate, High-Fidelity Entanglement of Qubits Across an Elementary Quantum Network.

DOI：
10.1103/physrevlett.124.110501
发表时间：
2019-11
期刊：
Physical review letters
影响因子：
8.6
作者：
L. J. Stephenson;D. P. Nadlinger;B. C. Nichol;S. An;P. Drmota;T. Ballance;K. Thirumalai;J. Goodwin;D. Lucas;C. Ballance
通讯作者：
L. J. Stephenson;D. P. Nadlinger;B. C. Nichol;S. An;P. Drmota;T. Ballance;K. Thirumalai;J. Goodwin;D. Lucas;C. Ballance

Introducing nonlinear activations into quantum generative models