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Photonic Connections for Neutral-Atoms Quantum Processors

中性原子量子处理器的光子连接

基本信息

批准号：
2014012
负责人：
Alexander Kuzmich
金额：
$ 28万
依托单位：
Regents of the University of Michigan - Ann Arbor
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-09-01 至 2023-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2014012&HistoricalAwards=false
关键词：
Photonic Connections Neutral Atoms Quantum

项目摘要

Most everyone is familiar with telecommunication networks, networks that link our computers and mobile devices. What might be less known to the general public is that quantum networks can offer tremendous advantages over their classical counterparts. Quantum networks make use of principles of quantum mechanics, which allow for increased speed and security. Such networks, consisting of nodes and interconnecting channels, could revolutionize communication and computation, as well as providing a new means for modeling complex systems in physics and biology. The network’s fixed nodes (quantum memory elements) can be implemented using matter in the form of trapped atoms that are able to store complex, quantum encoded messages for many seconds. Light can be used to connect the nodes, carrying quantum communication signals along optical fibers. As a consequence, the fundamental building block of a quantum telecommunication network involves interfacing the fixed nodes (material quanta) with light (photons). To exploit the quantum properties of the network, it is necessary to couple the nodes in a uniquely quantum manner, referred to as quantum entanglement. This project will focus on demonstrating new capabilities for generation of such remote entanglement, to be used as a resource for distributed quantum information processing. A major goal of the project is to develop photonic interconnects for arrays of trapped neutral atoms. Information will be processed and stored in the atomic arrays and mapped onto propagating light fields coupled into optical fibers. The proposed research program will investigate quantum information processing using single photon states and trapped ultracold atoms. Strong interactions of atomic Rydberg levels will serve as the basis for creating quantum gates between atomic qubits, while atom – single photon entanglement will be achieved using Raman scattering of laser fields. This should allow for a scalable generation and manipulation of complex entangled states involving both atomic qubits and single photons. Realization of this program will also lead to efficient distribution of entangled many-particle quantum states over long distances using optical fibers. The planned activity will contribute to the future implementations of long-distance quantum repeaters and distributed quantum computing. Efficient production of multi-qubit entangled states will impact fundamental physics investigations and advance quantum-enhanced measurement techniques. In doing so, this research will impact progress of emerging technological applications of quantum computation and communication, quantum sensors for navigation and magnetometry, and atomic clocks.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.

几乎每个人都熟悉电信网络，即连接我们的计算机和移动设备的网络。公众可能不太了解的是，量子网络可以提供比经典网络更大的优势。量子网络利用了量子力学的原理，从而提高了速度和安全性。这种由节点和相互连接的通道组成的网络可能会给通信和计算带来革命性的变化，并为物理和生物学中的复杂系统建模提供一种新的手段。网络的固定节点(量子存储元件)可以使用捕获原子形式的物质来实现，这些原子能够存储复杂的量子编码消息数秒。光可以用来连接节点，沿着光纤传输量子通信信号。因此，量子电信网络的基本构件包括连接固定节点(材料量子)和光(光子)。为了利用网络的量子特性，有必要以一种独特的量子方式耦合节点，称为量子纠缠。这个项目将集中展示产生这种远程纠缠的新能力，作为分布式量子信息处理的资源。该项目的一个主要目标是为被捕获的中性原子阵列开发光子互连。信息将被处理并存储在原子阵列中，并映射到耦合到光纤中的传播光场上。拟议的研究计划将研究使用单光子态和捕获的超冷原子的量子信息处理。原子里德堡能级的强相互作用将作为建立原子量子比特之间量子门的基础，而原子-单光子纠缠将利用激光场的拉曼散射来实现。这应该允许可扩展地产生和操纵涉及原子量子比特和单光子的复杂纠缠态。这一方案的实现还将导致利用光纤实现长距离纠缠多粒子量子态的高效分布。计划中的活动将有助于未来远程量子中继器和分布式量子计算的实施。多量子比特纠缠态的高效产生将对基础物理研究产生影响，并推动量子增强测量技术的发展。通过这样做，这项研究将影响量子计算和通信、用于导航和磁力测量的量子传感器以及原子钟等新兴技术应用的进展。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。