Quantum gate teleportation between separated qubits in a trapped-ion processor
Yong Wan, Daniel Kienzler, Stephen D. Erickson, Karl H. Mayer, Ting Rei Tan, Jenny J. Wu, Hilma M. Vasconcelos, Scott Glancy, Emanuel Knill, David J. Wineland, … 展开作者
Yong Wan, Daniel Kienzler, Stephen D. Erickson, Karl H. Mayer, Ting Rei Tan, Jenny J. Wu, Hilma M. Vasconcelos, Scott Glancy, Emanuel Knill, David J. Wineland, Andrew C. Wilson, Dietrich Leibfried
Large-scale quantum computers will require quantum gate operations between widely separated qubits. A method for implementing such operations, known as quantum gate teleportation (QGT), requires only local operations, classical communication, and shared entanglement. We demonstrate QGT in a scalable architecture by deterministically teleporting a controlled-NOT (CNOT) gate between two qubits in spatially separated locations in an ion trap. The entanglement fidelity of our teleported CNOT is in the interval [0.845, 0.872] at the 95% confidence level. The implementation combines ion shuttling with individually-addressed single-qubit rotations and detections, same- and mixedspecies two-qubit gates, and real-time conditional operations, thereby demonstrating essential tools for scaling trapped-ion quantum computers combined in a single device.
Scaling roadmap for modular trapped-ion QEC and lattice-surgery teleportation
Instituto de Física Teórica UAM-CSIC, Universidad Autónoma de Madrid（马德里自治大学理论物理研究所）；Institute for Quantum Electronics, ETH Zürich（苏黎世联邦理工学院量子电子学研究所）；School of Electrical and Computer Engineering, Cornell University（康奈尔大学电气与计算机工程学院）；Universität Innsbruck, Institut für Experimentalphysik（因斯布鲁克大学实验物理研究所）；Institute for Quantum Information, RWTH Aachen University（亚琛工业大学量子信息研究所）；Institute for Theoretical Nanoelectronics (PGI-2), Forschungszentrum Jülich（于利希研究中心理论纳米电子学研究所）
Robust high-fidelity teleportation of an atomic state through the detection of cavity decay
提出了一种基于腔场衰减探测的原子态量子隐形传态方案。利用单光子探测器测量偏振光子的干涉，可以将囚禁在腔中的原子的内部态离散地转移到另一个囚禁在远处腔中的原子上。与S. Bose，P.L. Knight，M.B. Plenio，and V. Vedral [Phys. Rev. Lett. 83，5158（1999）]，我们的隐形传态协议具有几乎统一的高保真度和固有的鲁棒性，例如保真度对原子位置的随机性和检测效率的不敏感性。所有这些有利的特性使得该方案在当前的实验技术下是可行的。
Generating Einstein$\unicode{x2013}$Podolsky$\unicode{x2013}$Rosen correlations for teleporting collective spin states in a two dimensional trapped ion crystal
Nonlocal Games as Cross-Platform Quantum Benchmarks: Exceeding unconditional classical bounds on trapped-ion processors
Joint Quantum Institute and Department of Physics, University of Maryland（马里兰大学联合量子研究所与物理系）；National Quantum Laboratory (QLab), University of Maryland（马里兰大学国家量子实验室（QLab））；Physical Detection Systems and Deployment Division, Pacific Northwest National Laboratory（太平洋西北国家实验室物理探测系统与部署部）；Duke Quantum Center, Department of Physics, and Department of Electrical and Computer Engineering, Duke University（杜克大学杜克量子中心、物理系及电气与计算机工程系）；Quantum Information Science Section, Oak Ridge National Laboratory（橡树岭国家实验室量子信息科学科）；Quantum Center, University of Tennessee at Chattanooga（田纳西大学查塔努加分校量子中心）
Pump-Free Microwave-Optical Bell Pair Generation for Teleportation-Based Quantum Transduction
University of Chicago（芝加哥大学）；Pritzker School of Molecular Engineering, University of Chicago（普里茨克分子工程学院）；Q-NEXT, Argonne National Laboratory（Q-NEXT，阿贡国家实验室）；Materials Science Division, Argonne National Laboratory（材料科学部，阿贡国家实验室）
Cryogenic Time-Division-Multiplexed Voltage Control for Scalable Trapped-Ion Quantum Processors
QuEL, Inc.（QuEL公司）；Center for Quantum Information and Quantum Biology, The University of Osaka（大阪大学量子信息与量子生物学中心）；International Center for Elementary Particle Physics (ICEPP), The University of Tokyo（东京大学 elementary 粒子物理国际中心）；Komaba Institute for Science (KIS), The University of Tokyo（东京大学驹场理学研究所）；e-trees. Japan, Inc.（e-trees日本公司）；RIKEN Center for Quantum Computing (RQC)（理化学研究所量子计算中心）；Inamori Research Institute for Science (InaRIS)（稻盛科学研究所）
Scalable suppression of heating errors in large trapped-ion quantum processors
Center on Frontiers of Computing Studies, School of Computer Science, Peking University（北京大学计算机学院前沿计算研究中心）；Key Laboratory of Atomic and Subatomic Structure and Quantum Control (Ministry of Education), Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, School of Physics, South China Normal University（华南师范大学物理学院原子与亚原子结构及量子控制教育部重点实验室、广东省物质结构与基本相互作用卓越基础研究基地）；Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University（华南师范大学前沿物理研究院广东量子工程与量子材料重点实验室、粤港澳量子物质联合实验室）
