ITR: Center for Quantum Information Physics

NSF-ITR Medium奖为耶鲁大学量子信息物理中心(CQuIP)提供支持。CQuIP的研究人员正试图利用最近的工作，这项工作表明，通过用遵守量子力学定律的“量子比特”取代正常的比特，在理论上可以执行某些经典计算机不可能完成的计算或程序。潜在的应用包括没有密钥的安全通信；某些计算的指数加速，例如素因式分解等。然而，这些优势只有通过比该领域的当前技术水平大得多的互连的量子比特系统才能完全实现。CQuIP的中心目标是演示与可扩展量子计算和量子通信的各种新颖方法相关的原则证明。这个项目中研究的具体方法是基于超导微电路、半导体的自旋态和超冷极性分子阵列。CQuIP的研究还将极大地促进我们对这些系统背后的基本物理的理解。正在研究的方法跨越了物理学的几个子领域，CQuIP各个子组之间的互动鼓励跨越传统智力边界的思想交叉受精。CQuIP的一个核心职能是在量子信息科学的新领域教育博士后研究员、研究生和本科生。CQuIP还作为该领域内研究人员的联系点，通过访客计划；以及作为教育推广中心，通过在附近小型大学的演讲计划。该NSF-ITR Medium奖为耶鲁大学量子信息物理中心(CQuIP)提供支持。CQuIP的研究人员将以最近的工作为基础，这项工作表明，通过用遵守量子力学定律的比特替换计算机中的普通比特，理论上可以比任何普通计算机上执行某些计算(如密码破译)的速度更快。然而，这样的量子计算将需要一个系统，其可用的量子比特比表征该领域当前技术状态的少数几个量子比特多得多。CQuIP致力于研制这种大规模的“量子信息处理器”。该中心将从实验和理论上研究几种不同的、有前景的量子比特技术：超导电路；半导体中的核自旋；以及激光捕获的极性分子阵列。CQuIP的一个核心职能是在量子信息科学的新领域教育博士后研究员、研究生和本科生。CQuIP还通过访客计划作为该领域研究人员的联络点，并通过附近小型学院的讲座计划作为教育推广中心。

This NSF-ITR medium award provides support for the Center for Quantum Information Physics (CQuIP) at Yale University. Researchers in CQuIP are attempting to capitalize on recent work that has shown that--by replacing normal bits with "qubits" that obey the laws of quantum mechanics--it is in theory it is possible to perform certain calculations or procedures that are impossible with a classical computer. Potential applications include secure communication without cryptographic keys; exponential speedup of certain computations such as prime factorization; etc. However, these advantages can only be fully realized with interconnected systems of qubits that are much larger than the current state of the art for the field. The central aim of CQuIP is to demonstrate proof-of-principle relating to a diverse and novel set of approaches for scalable quantum computing and quantum communication. The particular approaches studied in this project are based on superconducting microcircuits; spin states of semiconductors; and ultracold polar molecule arrays. The research at CQuIP will also significantly advance our understanding of the basic physics underlying these systems. The approaches under study span several sub fields of physics, and interaction between the subgroups of CQuIP encourages cross-fertilization of ideas across traditional intellectual boundaries. A core function of the CQuIP is education of postdoctoral fellows, graduate students, and undergraduates in the new field of quantum information science. CQuIP also serves as a point of contact for researchers within the field, through a program for visitors; and as an educational outreach center, through a program of talks at nearby small colleges.This NSF-ITR medium award provides support for the Center for Quantum Information Physics (CQuIP) at Yale University. Researchers in CQuIP will build on recent work which has shown that--by replacing normal bits in a computer with bits that obey the laws of quantum mechanics--it is in theory possible to perform certain calculations (such as cryptographic code-breaking) qualitatively faster than on any normal computer. However, such quantum computation would require a system with substantially more usable quantum bits than the handful of "qubits" that characterize the current state of the art for the field. The CQuIP is devoted to development of such large-scale "quantum information processors". The center will investigate, experimentally and theoretically, several different and promising qubit technologies: Superconducting circuits; nuclear spins in semiconductors; and laser-trapped arrays of polar molecules. A core function of the CQuIP is education of postdoctoral fellows, graduate students, and undergraduates in the new field of quantum information science. CQuIP also serves as a point of contact for researchers within the field, through a program for visitors; and as an educational outreach center, through a program of talks at nearby small colleges.