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Center for Quantum Information and Control

量子信息与控制中心

基本信息

批准号：
1521016
负责人：
Carlton Caves
金额：
$ 50万
依托单位：
University of New Mexico
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2015
资助国家：
美国
起止时间：
2015-08-15 至 2018-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1521016&HistoricalAwards=false
关键词：
Center Quantum Information Control

项目摘要

Quantum information science (QIS) is the interdisciplinary field that investigates how to use systems obeying the laws of quantum mechanics to perform information-processing tasks that cannot be performed efficiently using conventional information-processing systems. This project funds center-wide research and outreach activities of the Center for Quantum Information and Control (CQuIC). The Center involves the efforts of four faculty members at the University of New Mexico (UNM) and one at the University of Arizona (UA). The goal of research at CQuIC is to combine the abstract understanding of QIS that comes from mathematical physics and computer science with the practical knowledge of physical systems that comes from physics, in order to design practical quantum-information-processing protocols and to implement such protocols in laboratories at UNM and UA. CQuIC's chief scientific-outreach activity is the administration and organization of the SQuInT Network, a consortium of 26 node institutions, including research universities, undergraduate colleges, national and industrial laboratories, and international centers for QIS research. The SQuInT Annual Workshop, which had its seventeenth installment in February 2015, has grown to be one of the major scientific meetings in QIS, unique in its integration of physics and information-science talks and its emphasis on presentations by a mix of senior personnel, postdocs, and students. This project provides partial, but substantial support for the SQuInT Annual Workshop. The research to be carried out under this project has two different, but closely related focuses. The first is development of fundamental techniques for preparation of quantum states, control of quantum dynamics, and precision measurement, together with verification of any of these three. Some of the proposed research is theoretical and platform independent: Investigate in-situ characterization of errors in quantum information processing (QIP) protocols using syndrome data from quantum error correction. Other research is tightly coupled theory-experiment development and refinement of control toolkits for particular quantum systems, in this case, optical photons and cesium atomic ensembles: Develop and implement sophisticated techniques for state, process, and detector (POVM) tomography in the 16-dimensional ground hyperfine manifold of the cesium atom, and develop and implement techniques to control and squeeze the collective spin of atomic ensembles consisting of a thousand to a million cesium atoms. The second focus is application of these control techniques to QIP tasks. Some of this work is primarily theoretical: Investigate the potential, capabilities, and robustness of analog quantum simulation, with particular attention to the prospects for boson sampling. Other research is tightly coupled theory-experiment application of control techniques to perform QIP tasks in our laboratory systems: Implement the quantum kicked top in the 16-dimensional ground manifold of cesium, and implement sophisticated techniques to discriminate optical-frequency coherent states for enhanced optical communication.

量子信息科学（QIS）是一个跨学科的领域，研究如何使用遵守量子力学定律的系统来执行传统信息处理系统无法有效执行的信息处理任务。该项目为量子信息与控制中心（CQuIC）的全中心研究和推广活动提供资金。该中心涉及新墨西哥州大学（UNM）的四名教员和亚利桑那大学（UA）的一名教员的努力。 CQuIC的研究目标是将来自数学物理和计算机科学的QIS的抽象理解与来自物理学的物理系统的实用知识相结合，以设计实用的量子信息处理协议，并在UNM和UA的实验室中实施此类协议。 CQuIC的主要科学推广活动是SQuInT网络的管理和组织，这是一个由26个节点机构组成的联盟，包括研究型大学，本科院校，国家和工业实验室以及国际QIS研究中心。 SQuInT年度研讨会于2015年2月举行了第十七次会议，已成为QIS的主要科学会议之一，独特之处在于其物理和信息科学讲座的整合以及对高级人员，博士后和学生的混合演示的强调。该项目为SQuInT年度研讨会提供了部分但实质性的支持。在这个项目下进行的研究有两个不同但密切相关的重点。首先是发展量子态制备、量子动力学控制和精密测量的基本技术，以及对这三种技术的验证。一些拟议的研究是理论和平台独立的：调查在量子信息处理（QIP）协议中使用量子纠错的综合征数据的错误的原位表征。其他研究是紧密耦合的理论-实验开发和特定量子系统的控制工具包的改进，在这种情况下，光子和铯原子系综：在铯原子的16维地面超精细流形中开发和实施用于状态、过程和检测器（POVM）层析成像的复杂技术，并开发和实施技术来控制和挤压由一千到一百万个铯原子组成的原子系综的集体自旋。第二个重点是将这些控制技术应用于QIP任务。其中一些工作主要是理论性的：研究模拟量子模拟的潜力、能力和鲁棒性，特别关注玻色子采样的前景。其他研究是控制技术在我们实验室系统中执行QIP任务的紧密耦合的理论-实验应用：在铯的16维地面流形中实现量子踢顶，并实施复杂的技术来区分光频相干态以增强光通信。