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    Package comprising an ion-trap and method of fabrication
    11.
    发明授权
    Package comprising an ion-trap and method of fabrication 有权

    公开(公告)号：US10755913B2

    公开(公告)日：2020-08-25

    申请号：US15935312

    申请日：2018-03-26

    Applicant: Duke University

    Inventor： Jungsang Kim ,  Kai Hudek ,  Geert Vrijsen ,  Robert Spivey ,  Peter Maunz

    IPC: H01J49/42 ,  G06N10/00 ,  H01J49/16 ,  H01J49/24

    Abstract: A package-level, integrated high-vacuum ion-chip enclosure having improved thermal characteristics is disclosed. Enclosures in accordance with the present invention include first and second chambers that are located on opposite sides of a chip carrier, where the chambers are fluidically coupled via a conduit through the chip carrier. The ion trap is located in the first chamber and disposed on the chip carrier. A source for generating an atomic flux is located in the second chamber. The separation of the source and ion trap in different chambers affords thermal isolation between them, while the conduit between the chambers enables the ion trap to receive the atomic flux.

    MULTISCALE TELESCOPIC IMAGING SYSTEM
    13.
    发明申请
    MULTISCALE TELESCOPIC IMAGING SYSTEM 有权
    多尺度影像成像系统

    公开(公告)号：US20140176710A1

    公开(公告)日：2014-06-26

    申请号：US14068708

    申请日：2013-10-31

    Applicant: Duke University

    Inventor： David Jones Brady ,  Jungsang Kim ,  Daniel Marks ,  Hui Seong Son

    IPC: H04N5/232 ,  G02B23/00

    CPC classification number: H04N5/23238 ,  G02B13/06 ,  G02B23/12 ,  G02B27/0025 ,  G03B37/04 ,  H04N5/2254 ,  H04N5/23212 ,  H04N5/2624

    Abstract: A multiscale telescopic imaging system is disclosed. The system includes an objective lens, having a wide field of view, which forms an intermediate image of a scene at a substantially spherical image surface. A plurality of microcameras in a microcamera array relay image portions of the intermediate image onto their respective focal-plane arrays, while simultaneously correcting at least one localized aberration in their respective image portions. The microcameras in the microcamera array are arranged such that the fields of view of adjacent microcameras overlap enabling field points of the intermediate image to be relayed by multiple microcameras. The microcamera array and objective lens are arranged such that light from the scene can reach the objective lens while mitigating deleterious effects such as obscuration and vignetting.

    Abstract translation: 公开了一种多尺度伸缩成像系统。 该系统包括具有宽视野的物镜，其在基本上为球面的图像表面形成场景的中间图像。 微型摄像机阵列中的多个微型摄像机将中间图像的部分中继到其各自的焦平面阵列上，同时在其各自的图像部分中校正至少一个局部像差。 微型摄像机阵列中的微型摄像机被布置成使得相邻微型摄像机的视野与中间图像的使能场点重叠由多个微摄像机中继。 微型摄像机阵列和物镜被布置成使得来自场景的光可以到达物镜，同时减轻诸如遮蔽和渐晕的有害影响。

    Active stabilization of coherent controllers using nearby qubits
    14.
    发明授权
    Active stabilization of coherent controllers using nearby qubits 有权

    公开(公告)号：US12288132B2

    公开(公告)日：2025-04-29

    申请号：US17362810

    申请日：2021-06-29

    Applicant: University of Maryland, College Park ,  Duke University

    Inventor： Jungsang Kim ,  Kenneth Brown ,  Christopher Monroe

    IPC: G06N10/40

    Abstract: Aspects of the present disclosure describe techniques that involve an active stabilization of coherent controllers using nearby qubits. In an aspect, a quantum information processing (QIP) system for stabilizing phase damping in qubits is described that provides a first and a second qubit ion, measuring magnetic field fluctuations using the second qubit ion, and generates one or more magnetic fields based on the measured magnetic field fluctuations, the one or more magnetic fields being applied near the first qubit ion to cancel the magnetic field fluctuations to stabilize the phase damping of the first qubit ion. Another such QIP system performs provides a first and a second qubit ion, locks a local oscillator to a frequency reference associated with the second qubit ion, and tracks, using the local oscillator, a frequency of the first qubit ion based on the frequency reference. Methods associated with these QIP systems are also described.

    Fault-tolerant scalable modular quantum computer architecture with an enhanced control of multi-mode couplings between trapped ion qubits
    16.
    发明授权
    Fault-tolerant scalable modular quantum computer architecture with an enhanced control of multi-mode couplings between trapped ion qubits 有权

    公开(公告)号：US11816537B2

    公开(公告)日：2023-11-14

    申请号：US17384574

    申请日：2021-07-23

    Applicant: UNIVERSITY OF MARYLAND ,  DUKE UNIVERSITY

    Inventor： Christopher Monroe ,  Jungsang Kim

    IPC: G06N10/00 ,  G06F15/76 ,  G02F1/11

    CPC classification number: G06N10/00 ,  G06F15/76 ,  G02F1/113 ,  G06F2015/768

    Abstract: A modular quantum computer architecture is developed with a hierarchy of interactions that can scale to very large numbers of qubits. Local entangling quantum gates between qubit memories within a single modular register are accomplished using natural interactions between the qubits, and entanglement between separate modular registers is completed via a probabilistic photonic interface between qubits in different registers, even over large distances. This architecture is suitable for the implementation of complex quantum circuits utilizing the flexible connectivity provided by a reconfigurable photonic interconnect network. The subject architecture is made fault-tolerant which is a prerequisite for scalability. An optimal quantum control of multimode couplings between qubits is accomplished via individual addressing the qubits with segmented optical pulses to suppress crosstalk in each register, thus enabling high-fidelity gates that can be scaled to larger qubit registers for quantum computation and simulation.

    Parabolic Cassegrain-type reflector for ablation loading
    17.
    发明授权
    Parabolic Cassegrain-type reflector for ablation loading 有权

    公开(公告)号：US11796721B2

    公开(公告)日：2023-10-24

    申请号：US17342012

    申请日：2021-06-08

    Applicant: IonQ, Inc. ,  Duke University

    Inventor： Kenneth Wright ,  Jason Madjdi Amini ,  Jungsang Kim

    IPC: G02B5/10 ,  G21K5/00

    CPC classification number: G02B5/10 ,  G21K5/00

    Abstract: Aspects of the present disclosure describe techniques for using a parabolic Cassegrain-type reflector for ablation. For example, a system for ablation loading of a trap is described that includes a reflector having a hole aligned with a loading aperture of the trap, and an atomic source positioned at a focal point of the reflector, where one or more laser beams are reflected from a reflective front side of the reflector and focused on a surface of the atomic source to produce an atomic plume, and the atomic plume once produced passing through the hole in the reflector and through a loading aperture of the trap for loading the trap. A method for ablation loading of a trap within a chamber in a trapped ion system is also described.

    Classical optimizer for quantum chemistry circuit synthesis
    18.
    发明授权
    Classical optimizer for quantum chemistry circuit synthesis 有权

    公开(公告)号：US10776544B2

    公开(公告)日：2020-09-15

    申请号：US16213379

    申请日：2018-12-07

    Applicant: IonQ, Inc. ,  Duke University

    Inventor： Conor Delaney ,  Jungsang Kim ,  Yunseong Nam

    IPC: G06F30/327 ,  G06F30/20 ,  G06N10/00 ,  G06F111/02

    Abstract: A computer-implemented method, system and a computer readable medium storing executable instructions for optimizing a quantum circuit are disclosed. The computer-implemented method includes receiving one or more parameters for simulation of evolution of at least one quantum state of a chemical entity to be simulated; generating a quantum circuit for the simulation; performing one or more operations to minimize quantum resources to be used for the generated quantum circuit based on the one or more parameters; and placing quantum resources among one or more elementary logical units (ELUs) based on any one or more of: frequency of occurrence of the quantum resources in the generated quantum circuit, order of occurrence of the quantum resources in the generated quantum circuit, connectivity parameters between one or more quantum resources, efficiency of gates between specific quantum resources, quality of gates between specific quantum resources or a combination thereof.

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