LOSS OR UNDESIRED REORDERING OF QUANTUM OBJECTS DETECTION

    公开(公告)号:US20240354622A1

    公开(公告)日:2024-10-24

    申请号:US18454336

    申请日:2023-08-23

    申请人: Quantinuum LLC

    IPC分类号: G06N10/40 G06N10/20

    CPC分类号: G06N10/40 G06N10/20

    摘要: Various embodiments provide methods, apparatuses, systems, or computer program products for performing quantum object loss detection. The method performed by a controller of a quantum computer includes controlling one or more voltage sources to cause a quantum object confinement apparatus to confine a quantum object crystal, where the quantum object crystal (i) includes at least one of (a) a first species quantum object or (b) a second species quantum object and (ii) defines a crystal axis that is aligned along the RF null axis of the quantum object confinement apparatus; causing at least one first control signal to be provided to at least one control electrode of the plurality of control electrodes, where the at least one first control signal causes the at least one control electrode to generate a push field configured to cause the quantum object crystal axis to rotate with respect to the RF null axis.

    QUANTUM ERROR CORRECTION USING REAL PROJECTIVE PLANE TOPOLOGY DEFINED STABILIZERS

    公开(公告)号:US20240320537A1

    公开(公告)日:2024-09-26

    申请号:US18605140

    申请日:2024-03-14

    申请人: Quantinuum LLC

    IPC分类号: G06N10/70 G06N10/20 G06N10/40

    CPC分类号: G06N10/70 G06N10/20 G06N10/40

    摘要: A quantum computing system comprises a classical computing entity, a controller, and a quantum processor. The controller is configured to control operation of the quantum processor and communicate with the computing entity. The controller causes performance of a syndrome circuit segment to generate a syndrome of a logical qubit. The syndrome circuit segment is performed at least in part by causing performance of a sequence of at-least-two-physical-qubits interactions. The logical qubit comprises a plurality of data qubits logically organized in a real projective plane topology and the sequence of at-least-two-physical-qubits interactions is determined based on stabilizers determined based on the real projective plane topology of the logical qubit. The classical computing entity determines at least one quantum error correction based on the syndrome. A classical memory of the controller or the classical computing entity is updated based on the syndrome and/or the at least one quantum error correction.

    Atomic object confinement apparatus with radio frequency electrode shaping for periodic boundary conditions

    公开(公告)号:US12087463B2

    公开(公告)日:2024-09-10

    申请号:US18049845

    申请日:2022-10-26

    申请人: Quantinuum LLC

    IPC分类号: G21K1/00 G06N10/40

    CPC分类号: G21K1/003 G06N10/40

    摘要: Atomic object confinement apparatuses that include RF busses and systems including atomic object confinement apparatuses that include RF busses are provided. An example atomic object confinement apparatus comprises RF rail electrodes and an RF bus electrode(s). The RF rail electrodes form a periodic array of confinement segments within a central zone of the atomic object confinement apparatus and the RF bus electrodes are disposed in a perimeter zone disposed about the central zone. The RF rail electrodes and the RF bus electrode(s) are configured to generate a substantially periodic array of trapping regions when an oscillating voltage signal is applied to the RF rail electrodes and the RF bus electrode(s).

    Qubit reading procedure including coherent shel ving

    公开(公告)号:US12051519B2

    公开(公告)日:2024-07-30

    申请号:US17583308

    申请日:2022-01-25

    申请人: Quantinuum LLC

    摘要: Methods and controllers for reading a quantum state of an atomic object and/or qubit using coherent shelving are provided. A controller causes a first beam of a first wavelength and a second beam of a second wavelength to be incident on the qubit and causes a reading beam to be incident on the qubit. The first wavelength and the second wavelength are configured to couple a state of a qubit space of the qubit to a stable state. The stable state has a lifetime that is longer than a length of time required for performing a reading operation. The first beam and the second beam are generated by at least one manipulation source operated by at least one manipulation source driver of and/or in communication with and/or controlled by the controller.

    Quantum system controller configured for quantum error correction

    公开(公告)号:US11934920B2

    公开(公告)日:2024-03-19

    申请号:US17816807

    申请日:2022-08-02

    申请人: Quantinuum LLC

    IPC分类号: G06N10/70

    CPC分类号: G06N10/70

    摘要: A quantum system controller configured to perform (near) real-time quantum error correction is provided. The controller comprises a processing device comprising at least one first processing element; a time-indexed command (TIC) sequencer comprising at least one second processing element; and a plurality of driver controller elements configured to control the operation of respective components and associated with respective buffers and processing elements. The processing device is configured to generate commands and the TIC sequencer is configured to cause the time-indexed execution of the commands by the appropriate driver controller elements. The controlling of real-time operations of the quantum computer by the TIC sequencer enables the processing device to generate commands based on conditionals evaluated based on input data indicating quantum errors that are likely present in a quantum calculation being performed by the quantum computer such that commands addressing the quantum errors are generated and executed in (near) real-time.

    INTEGRATED SERVO SYSTEMS AND APPARTUSES FOR CONTROLLING QUANTUM COMPUTING OPERATIONS

    公开(公告)号:US20240085883A1

    公开(公告)日:2024-03-14

    申请号:US18094661

    申请日:2023-01-09

    申请人: Quantinuum LLC

    IPC分类号: G05B19/4155

    摘要: Embodiments of the present disclosure provide for a quantum computing system with one or more integrated servo systems. In some embodiments, the one or more integrated servo systems may be dynamically tuned or adjusted, which may provide for reduction of noise and improvement of timing of execution of quantum operations in the quantum computing system. In some embodiments, the integrated servo systems may be configured to use closed loop control system to tune the integrated servo systems. In some embodiments, the integrated servo systems may be configured for live streaming to operators through a plurality of operations.

    COHERENT DE-EXCITATION OF ATOMIC OBJECT CRYSTAL MOTIONAL MODES TO FACILITATE TRANSPORT IN A TRAPPED-ION QUANTUM COMPUTER

    公开(公告)号:US20230229956A1

    公开(公告)日:2023-07-20

    申请号:US18151617

    申请日:2023-01-09

    申请人: Quantinuum LLC

    IPC分类号: G06N10/40

    CPC分类号: G06N10/40

    摘要: Quantum computers, systems, apparatuses, and/or the like and corresponding methods for de-exciting coherent motional modes of an atomic object crystal confined by an atomic object confinement apparatus. One or more voltage sources are controlled to cause a waveform to be applied to an array of electrodes of the atomic object confinement apparatus. Application of the waveform to the array of electrodes causes each of the one or more transport operations to be performed on the respective atomic object crystal and causes de-excitation of at least one coherent motional mode of the respective atomic object crystal corresponding to the at least one of the one or more transport operations. The respective shim waveform configured to de-excite the at least one coherent motional mode may be determined based on a parameterized shim waveform and a calibration process for determining parameters corresponding to the atomic object confinement apparatus.

    MULTI-ATOMIC OBJECT CRYSTAL TRANSPORT THROUGH ATOMIC OBJECT CONFINEMENT APPARATUS JUNCTION

    公开(公告)号:US20230197430A1

    公开(公告)日:2023-06-22

    申请号:US18106434

    申请日:2023-02-06

    申请人: Quantinuum LLC

    IPC分类号: H01J49/06 H01J49/42

    CPC分类号: H01J49/062 H01J49/426

    摘要: A multi-atomic object crystal is transported from a first leg to a second leg of an atomic object confinement apparatus through a corresponding junction. Voltage sources in electrical communication with electrodes of the apparatus are controlled to confine the crystal in the first leg. The voltage sources are controlled to cause transport of the crystal along the first leg to proximate the junction and then to cause generation of a time-dependent potential at the junction that is configured to cause the crystal to traverse a transport path through the junction from the first leg to the second leg via a dynamic potential well. An order of atomic objects within the multi-atomic object crystal is changed as the multi-atomic object crystal traverses the transport path.