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公开(公告)号：US11538674B2
公开(公告)日：2022-12-27
申请号：US16950703
申请日：2020-11-17
Applicant: Duke University
Inventor： Geert Vrijsen , Jungsang Kim , Robert Spivey , Ismail Inlek , Yuhi Aikyo
Abstract: Systems and methods for loading microfabricated ion traps are disclosed. Photo-ablation via an ablation pulse is used to generate a flow of atoms from a source material, where the flow is predominantly populated with neutral atoms. As the neutral atoms flow toward the ion trap, two-photon photo-ionization is used to selectively ionize a specific isotope contained in the atom flow. The velocity of the liberated atoms, atom-generation rate, and/or heat load of the source material is controlled by controlling the fluence of the ablation pulse to provide high ion-trapping probability while simultaneously mitigating generation of heat in the ion-trapping system that can preclude cryogenic operation. In some embodiments, the source material is held within an ablation oven comprising an electrically conductive housing that is configured to restrict the flow of agglomerated neutral atoms generated during photo-ablation toward the ion trap.
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公开(公告)号：US11354589B2
公开(公告)日：2022-06-07
申请号：US16708025
申请日：2019-12-09
Applicant: IonQ, Inc. , University of Maryland, College Park , Duke University
Inventor： Jungsang Kim , Yunseong Nam , Christopher Monroe
Abstract: The disclosure describes various aspects of a practical implementation of multi-qubit gate architecture. A method is described that includes enabling ions in the ion trap having three energy levels, enabling a low-heating rate motional mode (e.g., zig-zag mode) at a ground state of motion with the ions in the ion trap; and performing a Cirac and Zoller (CZ) protocol using the low-heating rate motional mode as a motional state of the CZ protocol and one of the energy levels as an auxiliary state of the CZ protocol, where performing the CZ protocol includes implementing the multi-qubit gate. The method also includes performing one or more algorithms using the multi-qubit gate, including Grover's algorithm, Shor's factoring algorithm, quantum approximation optimization algorithm (QAOA), error correction algorithms, and quantum and Hamiltonian simulations. A corresponding system that supports the implementation of a multi-qubit gate architecture is also described.
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公开(公告)号：US11281987B2
公开(公告)日：2022-03-22
申请号：US16199993
申请日：2018-11-26
Applicant: Duke University , IONQ, INC.
Inventor： Jungsang Kim , David Moehring , Omar Shehab , Yunseong Nam , Jonathan Mizrahi , Stewart Allen
Abstract: The disclosure describes various aspects of a software-defined quantum computer. For example, a software-defined quantum computer and an expandable/modular quantum computer are described. Also described are at least a software-defined quantum architecture, a resource manager workflow, a quantum compiler architecture, hardware description language configuration, levels of application programming interface (API) access points, and exception handling in software-defined quantum architecture.
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公开(公告)号：US10725280B2
公开(公告)日：2020-07-28
申请号：US15491826
申请日：2017-04-19
Applicant: Duke University
Inventor： David Jones Brady , Jungsang Kim , Daniel Marks , Hui Seong Son
IPC: G02B23/12 , G02B13/16 , H04N5/247 , H04N5/341 , G02B13/06 , H04N5/262 , H04N5/357 , G02B27/00 , G03B37/04 , H04N5/225 , H04N5/232 , H04N13/204 , H04N9/04
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.
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公开(公告)号：US09432591B2
公开(公告)日：2016-08-30
申请号：US13889007
申请日：2013-05-07
Applicant: Duke University
Inventor： David Jones Brady , Jungsang Kim , Daniel Marks , Hui Seong Son
CPC classification number: H04N5/2624 , G02B13/06 , G02B27/0025 , G03B37/04 , H04N5/2254 , H04N5/23212 , H04N5/23238 , H04N13/204
Abstract: A multiscale imaging system including microcameras having controllable focus, dynamic range, exposure, and magnification is disclosed. The objective lens forms a three-dimensional image field of a scene. Image regions of the image field are relayed by the microcameras onto their respective focal-plane arrays, which collectively provide a plurality of digital sub-images of the scene. The digital sub-images can then be used to form a composite digital image of the scene that can have enhanced depth-of-field, enhanced dynamic range, parallax views of the scene, or three-dimensionality.
Abstract translation: 公开了一种包括具有可控焦点，动态范围，曝光和放大倍率的微型摄像机的多尺度成像系统。 物镜形成场景的三维图像场。 图像场的图像区域由微型摄像机中继到它们各自的焦平面阵列上，这些阵列共同提供场景的多个数字子图像。 然后可以使用数字子图像来形成场景的复合数字图像，其可以具有增强的景深，增强的动态范围，场景的视差或三维度。
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Patent Agency Ranking
公开(公告)号：US11994666B2
公开(公告)日：2024-05-28
申请号：US17374127
申请日：2021-07-13
Applicant: IonQ, Inc. , Duke University
Inventor： Jungsang Kim , Kai Hudek , Jaime David Wong-Campos
Abstract: Aspects of the present disclosure describe techniques for independently controlling an angle (e.g., change in tilt) and/or position (e.g., change in lateral position) of an optical beam. For example, an optical beam control system may include a telescope with rotatable mirrors and lenses configured to provide a path to an optical beam to produce an output optical beam, which in turn is made into parallel optical beams following a diffractive optical element. The optical beam control system may also include a detector system to a beam angle and/or a beam position of one of the parallel optical beams to generate feedback signal or signals to control a rotation of one or more of the mirrors in the telescope such as to adjust the beam angle, the beam position, or both of the parallel optical beams. The optical beam control system may be part of a quantum information processing (QIP) system.
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公开(公告)号：US20230037882A1
公开(公告)日：2023-02-09
申请号：US17883062
申请日：2022-08-08
Applicant: Duke University
Inventor： Robert Spivey , Kai Hedek , Ismail Inlek , Jungsang Kim , Zhubing Jia
IPC: G02B7/00
Abstract: Technologies for an optomechanical system include an intermediate plate having a top surface with multiple tapped holes arranged in a grid. A pair of dowel pin holes surround each tapped hole in a linear pattern. Multiple optical blocks are coupled to the intermediate plate using dowel pins positioned in the dowel pin holes and corresponding dowel pin holes defined in the bottom surface of the optical block. Each optical block includes multiple optical elements coupled to the top surface of the optical block with dowel pins. A cryostat may be coupled to the intermediate plate. A cryo-package assembly is mounted inside a cryo chamber of the cryostat. The cryo-package assembly includes a cryo device such as an ion trap covered by a machined copper lid. The lid includes a meandering passageway to allow for differential pumping in order to achieve ultra-high vacuum within the cryo-package assembly.
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公开(公告)号：US11163928B2
公开(公告)日：2021-11-02
申请号：US17006314
申请日：2020-08-28
Applicant: IonQ, Inc. , Duke University
Inventor： Conor Delaney , Jungsang Kim , Yunseong Nam
IPC: G06F30/327 , G06N10/00 , G06F30/20 , 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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公开(公告)号：US10923335B2
公开(公告)日：2021-02-16
申请号：US16357488
申请日：2019-03-19
Applicant: Duke University
Inventor： Geert Vrijsen , Jungsang Kim , Robert Spivey , Ismail Inlek , Yuhi Aikyo
Abstract: Systems and methods for loading microfabricated ion traps are disclosed. Photo-ablation via an ablation pulse is used to generate a flow of atoms from a source material, where the flow is predominantly populated with neutral atoms. As the neutral atoms flow toward the ion trap, two-photon photo-ionization is used to selectively ionize a specific isotope contained in the atom flow. The velocity of the liberated atoms, atom-generation rate, and/or heat load of the source material is controlled by controlling the fluence of the ablation pulse to provide high ion-trapping probability while simultaneously mitigating generation of heat in the ion-trapping system that can preclude cryogenic operation. In some embodiments, the source material is held within an ablation oven comprising an electrically conductive housing that is configured to restrict the flow of agglomerated neutral atoms generated during photo-ablation toward the ion trap.
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公开(公告)号：US10802230B2
公开(公告)日：2020-10-13
申请号：US16116492
申请日：2018-08-29
Applicant: Duke University
Inventor： Jungsang Kim , Stephen Crain
Abstract: A system for the collection and isolation of photons from multiple photon sources is provided that images individual photon sources onto individual optical fibers. The collected photons can then be directed to one or more photon detectors. The present invention is particularly applicable to a qubit state detection system for the detection of individual qubit states.
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