Collaborative Research: Advances in Quantum Control and Noise Mitigation on A Highly Accurate Testbed

合作研究：高精度测试台上量子控制和噪声抑制的进展

• 批准号: 2210013
• 负责人: Ivan Deutsch
• 金额: $ 28.41万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2210013&HistoricalAwards=false
• 关键词: Collaborative; Research; Advances; Quantum; Control

Quantum technologies use the full power of quantum mechanics to process information in ways that go beyond the capabilities of even the most powerful classical supercomputers. It is envisioned that such machines would propel development of both high tech materials and pharmaceuticals, and also of basic research in areas like high energy and condensed matter physics. While general purpose quantum computers are still years in the future, steady development in quantum hardware have brought us to the era of Noisy Intermediate Scale Quantum (NISQ) devices. The key challenge in this era is to tame the errors and imperfections hindering the performance of these devices to allow them to develop the necessary complexity to achieve quantum advantage over their classical counterparts. This project seeks to develop and test new techniques to both control these devices and to shield them from noise, and to better understand their fundamental limitations. Such understanding is essential to accelerate the application of quantum technologies to problems in science and engineering.The proposed project is a collaborative effort with both experimental and theoretical components. Its main goal is to develop and test new techniques for quantum control and noise mitigation in quantum processors, with an eye to future applications in NISQ simulators. For testing purposes, the group will employ a Small, Highly Accurate Quantum (SHAQ) processor based on the internal spin states of individual cesium atoms. By way of quantum optimal control, the SHAQ processor is universally programmable in a moderately-sized but nontrivial 16-dimensional Hilbert space, allowing access to arbitrary state preparations, unitary maps, and measurements in any basis. A planned upgrade will increase both the accuracy and duration of quantum simulations that can be performed to state-of-the art levels. This positions it as an ideal real-world experimental testbed that can be compared directly against theoretical models. Key research thrusts will include the simulation of deep quantum circuits and Floquet systems, studies of the role played by quantum chaos and dynamical instability in the proliferation of errors, techniques for noise tailoring and quantum error mitigation, and studies of Floquet Time Crystals in both theory and experiment.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

量子技术利用量子力学的全部力量以超越最强大的古典超级计算机的功能的方式处理信息。可以预见的是，这些机器将推动高科技材料和药品的开发，以及在高能量和冷凝物理物理等领域的基础研究。虽然通用量子计算机在未来仍然是数年，但是量子硬件的稳定开发使我们进入了嘈杂的中级量表量子（NISQ）设备的时代。这个时代的关键挑战是驯服阻碍这些设备性能的错误和缺陷，以使他们能够发展必要的复杂性，以使其比其经典同行获得量子优势。该项目旨在开发和测试新技术，以控制这些设备并保护它们免受噪音的影响，并更好地了解其基本局限性。这种理解对于加速量子技术在科学和工程中的问题上的应用至关重要。拟议的项目是与实验和理论组成部分的合作努力。它的主要目标是开发和测试量子处理器中量子控制和降噪的新技术，并关注NISQ模拟器中的未来应用。出于测试目的，该组将基于单个剖宫产的内部自旋态采用一个较小的高度精确量子（SHAQ）处理器。通过量子最佳控制，SHAQ处理器在适中但非平淡的16维希尔伯特空间中普遍编程，可以在任何基础上访问任意状态准备，单位地图和测量。计划的升级将提高可以执行最先进水平的量子模拟的准确性和持续时间。这将其定位为可以直接与理论模型进行比较的理想现实实验测试床。关键的研究推力将包括对深度量子电路和浮点系统的模拟，量子混乱所起的作用以及在误差增殖中发挥的作用以及动态不稳定，用于噪音的技术和缓解量子错误的技术以及对理论和实验中Floquet时间晶体的研究，这些奖项反映了NSF的构建范围和构建范围的构建范围。审查标准。