VIBRATION MITIGATION WITH OPTICAL FOLDING
    1.
    发明公开

    公开(公告)号:US20230394346A1

    公开(公告)日:2023-12-07

    申请号:US17832000

    申请日:2022-06-03

    Applicant: IonQ, Inc.

    CPC classification number: G06N10/40

    Abstract: Aspects of the present disclosure relate generally to systems and methods for use in the implementation and/or operation of quantum information processing (QIP) systems. Coherent optical manipulations in such QIP systems may require interferometric stability between the incident laser beams and the atomic-based qubit (or other type of qubit) being addressed. Mechanical vibrations that affect the position of the qubit with respect to the incident laser beams directly contribute to optical phase differences and reduce fidelity. A technique is described herein that is used to mitigate or reduce optical phase differences arising from vibrations of the qubits with respect to the incident laser beams. This technique is generally applicable to any condition that results in such vibrations and systems needing interferometric stability and is compatible with cryogenic environments.

    TECHNIQUES FOR MAKING HERMETIC FEEDTHROUGHS FOR ENCLOSURES

    公开(公告)号:US20200214157A1

    公开(公告)日:2020-07-02

    申请号:US16708171

    申请日:2019-12-09

    Applicant: IonQ, Inc.

    Abstract: The disclosure describes various aspects of techniques that can be used for making hermetic feedthroughs for enclosures. For example, a panel that provides a hermetic seal to a system enclosure can include an enclosure board made of a printed circuit board (PCB) and configured to have a size and shape that precisely covers an access to the system enclosure, the enclosure board including multiple inner connectors on an inner side of the PCB facing the inside of the system enclosure and multiple outer connectors on an outer side of the PCB facing the outside the system enclosure for feeding one or more of signals or fluids (e.g., gases, liquids, vacuum) through the PCB by having inner and outer connectors connected through the PCB. The panel may further include a gasket fitting the size and shape of the enclosure board and used with the enclosure board to provide the hermetic seal.

    SHED-RESISTANT THERMAL ATOM SOURCE
    3.
    发明申请

    公开(公告)号:US20190215945A1

    公开(公告)日:2019-07-11

    申请号:US16242431

    申请日:2019-01-08

    CPC classification number: H05H3/02 G06N10/00 H01J27/022

    Abstract: The disclosure describes various aspects of a shed-resistant thermal atom source. More specifically, a thermal atom source is described for uniform thermal flux of target atomic species in which a metal wadding material is used as an intermediary surface for sublimation of the atoms, preventing the source material from shedding or dropping. In an aspect, a thermal atom source may include a container with closed and open ends, and inside a source material near the closed end and a wadding between the source material and the open end; a heater coupled to the closed end; one or more clamps configured to secure the container and the heater; and a current source coupled to the container and the heater to cause a temperature to increase such that a portion of the source material is released and diffuses to the open end through the wadding prior to being emitted as a flux.

    EFFICIENT COOLING OF ION CHAINS FOR QUANTUM COMPUTATION

    公开(公告)号:US20230351233A1

    公开(公告)日:2023-11-02

    申请号:US18339068

    申请日:2023-06-21

    Applicant: IonQ, Inc.

    CPC classification number: G06N10/00

    Abstract: The disclosure describes various aspects of techniques for cooling a chain of ions to near the combined ground state that does not grow with the number of ions in the chain. By addressing each ion individually and using each ion to cool a different motional mode, it is possible to cool the motional modes concurrently. In an example, a third of the total motional modes can be cooled at the same time. In an aspect, the techniques include generating a sideband cooling laser beam for each ion in the ion chain, concurrently cooling two or more motional modes associated with the ions in the ion chain using the respective sideband cooling laser beam until each of the two or more motional modes reaches a motional ground state, and performing a quantum computation using the ion chain after the two or more motional modes have reached the motional ground state.

    MULTI-LAYER ION TRAP ON SHAPED GLASS OR DIELECTRIC SUBSTRATE

    公开(公告)号:US20230343577A1

    公开(公告)日:2023-10-26

    申请号:US18302572

    申请日:2023-04-18

    Applicant: IonQ, Inc.

    CPC classification number: H01J49/424 G06N10/40

    Abstract: Aspects of the present disclosure describe devices trapping devices for use in quantum information processing (QIP) architectures, and more particularly, to the use and fabrication of a multi-layer ion trap on shaped glass or dielectric substrate. A method for fabricating the ion trap is described that includes preparing a back surface of the substrate, building a multi-layer stack on the top surface of the substrate, and completing the back etch to break through the substrate and etching through a metal and dielectric in the multi-layer stack to complete the formation of the ion trap. Shaping of the ion trap may also include trap narrowing features, wings, and/or undercutting. An ion trap fabricated using this approach may be used in a QIP system to trap atomic species provided through a hole in the back of the substrate for use as qubits in quantum operations and computations.

    ELECTRODE FABRICATION AND DIE SHAPING FOR METAL-ON-GLASS ION TRAPS

    公开(公告)号:US20230034306A1

    公开(公告)日:2023-02-02

    申请号:US17876219

    申请日:2022-07-28

    Applicant: IonQ, Inc.

    Abstract: Techniques for the fabrication of electrodes and the shaping of glass dies or substrates are described to produce metal-on-glass ion traps. These ion traps may be configured to have open light access and high aspect trenches for the electrodes. For example, the glass substrate may be shaped to provide high numerical aperture (NA) light access by having angled cutouts, electrode structures with high aspect trenches, angled wire bonds for electrical connections, the angled wire bonds providing additional clear access by one or more laser beams, or a combination of any of these features. A quantum information processing (QIP) system is also described that may include an ion trap having any of these features.

    SCALABLE AND PROGRAMMABLE COHERENT WAVEFORM GENERATORS

    公开(公告)号:US20240134216A1

    公开(公告)日:2024-04-25

    申请号:US18542331

    申请日:2023-12-15

    Applicant: IonQ, Inc.

    CPC classification number: G02F1/017 G02F7/00 G06F1/10 G06N10/00 G02F1/01791

    Abstract: The disclosure describes various aspects of a system with scalable and programmable coherent waveform generators. A network and digital-to-analog conversion (DAC) cards used by the network are described where each DAC card has a clock divider/replicator device with an input SYNC pin, a digital logic component, and one or more DAC components, and each output of the DAC components is used to control optical beams for a separate qubit of a quantum information processing (QIP) system. The network also includes a first distribution network to provide a clock signal to the clock divider/replicator device in the DAC cards, and a second distribution network to provide a start signal to the DAC cards, where the start signal is used by the digital logic component in the DAC card to assert the input SYNC pin when the start signal is asserted unless it is masked by the digital logic component.

    SCALABLE AND PROGRAMMABLE COHERENT WAVEFORM GENERATORS

    公开(公告)号:US20220260860A1

    公开(公告)日:2022-08-18

    申请号:US17738775

    申请日:2022-05-06

    Applicant: IonQ, Inc.

    Abstract: The disclosure describes various aspects of a system with scalable and programmable coherent waveform generators. A network and digital-to-analog conversion (DAC) cards used by the network are described where each DAC card has a clock divider/replicator device with an input SYNC pin, a digital logic component, and one or more DAC components, and each output of the DAC components is used to control optical beams for a separate qubit of a quantum information processing (QIP) system. The network also includes a first distribution network to provide a clock signal to the clock divider/replicator device in the DAC cards, and a second distribution network to provide a start signal to the DAC cards, where the start signal is used by the digital logic component in the DAC card to assert the input SYNC pin when the start signal is asserted unless it is masked by the digital logic component.

    SCALABLE AND PROGRAMMABLE COHERENT WAVEFORM GENERATORS

    公开(公告)号:US20210026162A1

    公开(公告)日:2021-01-28

    申请号:US16936755

    申请日:2020-07-23

    Applicant: IonQ, Inc.

    Abstract: The disclosure describes various aspects of a system with scalable and programmable coherent waveform generators. A network and digital-to-analog conversion (DAC) cards used by the network are described where each DAC card has a clock divider/replicator device with an input SYNC pin, a digital logic component, and one or more DAC components, and each output of the DAC components is used to control optical beams for a separate qubit of a quantum information processing (QIP) system. The network also includes a first distribution network to provide a clock signal to the clock divider/replicator device in the DAC cards, and a second distribution network to provide a start signal to the DAC cards, where the start signal is used by the digital logic component in the DAC card to assert the input SYNC pin when the start signal is asserted unless it is masked by the digital logic component.

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