公开(公告)号：US20220383179A1

公开(公告)日：2022-12-01

申请号：US17746871

申请日：2022-05-17

Applicant: IONQ, INC.

Inventor： Andrii MAKSYMOV ,  Jason Hieu Van NGUYEN ,  Igor Leonidovich MARKOV ,  Yunseong NAM

IPC: G06N10/60 ,  G06F7/57

Abstract: A method of performing computation using a hybrid quantum-classical computing system including a classical computer, a system controller, and a quantum processor includes identifying a computational problem to be solved and a quantum algorithm to be used to solve the computational problem, detecting one or more faulty two-qubit gates among a plurality of two-qubit gates that can be applied to pairs of qubits in the quantum processor, compiling a computational task to solve the computational problem based on the quantum algorithm into a series of logic gates, including single-qubit gates and two-qubit gates that exclude the detected one or more faulty two-qubit gates, executing the series of logic gates on the quantum processor, measuring one or more of the qubits in the quantum processor, and outputting a solution to the identified computational problem derived from the measured results of the one or more of the qubits in the quantum processor.

公开(公告)号：US20230304927A1

公开(公告)日：2023-09-28

申请号：US18147311

申请日：2022-12-28

Applicant: IonQ, Inc.

Inventor： Jason Hieu Van NGUYEN ,  Kevin Antony LANDSMAN ,  Hermann UYS ,  Shantanu DEBNATH ,  Peter Lukas Wilhelm MAUNZ

IPC: G01N21/39 ,  G06N10/20 ,  G06N10/40 ,  G06N10/60

CPC classification number: G01N21/39 ,  G06N10/20 ,  G06N10/40 ,  G06N10/60 ,  G01N2021/393

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, and more particularly, to a fast single-mode spectroscopy technique that may be used in trapped-ion QIP systems. A method is described that includes performing a first measurement scan (full scan) across all motional modes of an ion chain in a trap followed by a second measurement scan on a single motional mode of the motional modes (single-mode scan). The second measurement scan determines a frequency shift associated with the single motional mode, which is applied to adjust the frequencies of all the motional modes. An implementation of two-qubit gates for quantum computations is based on the adjusted frequencies. A quantum computer or QIP system is also described that is configured to implement and perform the method described above.

公开(公告)号：US20240403678A1

公开(公告)日：2024-12-05

申请号：US17477148

申请日：2021-09-16

Applicant: IONQ, INC.

Inventor： Ming LI ,  Kenneth WRIGHT ,  Neal C. PISENTI ,  Kristin Marie BECK ,  Jason Hieu Van NGUYEN ,  Yunseong NAM

IPC: G06N10/20 ,  G06N10/40 ,  G06N10/70

Abstract: A method of performing a quantum gate operation in an ion trap quantum computing system includes identifying one or more error mechanisms that cause a quantum computational error in a quantum gate operation on a first trapped ion of an ion chain comprising a plurality of trapped ions, wherein the quantum gate operation is performed by applying a first Raman laser beam and a second Raman laser beam, computing a first amplitude of the first Raman laser beam, and a second amplitude of the second Raman laser beam such that the effect of the identified one or more error mechanisms is accounted for, and applying the first Raman laser beam having the computed first amplitude and the second Raman laser beam having the computed second amplitude on the first trapped ion to perform the quantum gate operation on the first trapped ion.

公开(公告)号：US20240370759A1

公开(公告)日：2024-11-07

申请号：US18048279

申请日：2022-10-20

Applicant: IonQ, Inc.

Inventor： Shantanu DEBNATH ,  Aleksey BLINOV ,  Coleman COLLINS ,  Kevin Antony LANDSMAN ,  Jason Hieu Van NGUYEN ,  Hermann UYS ,  Kristin M. BECK ,  Peter Lukas Wilhelm MAUNZ ,  Matthew KEESAN

IPC: G06N10/70

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. To optimize the performance of QIP systems or quantum computers in terms of both fidelity and algorithm uptime or throughput, described are techniques to stabilize continuous and discrete errors from drifting and/or noisy secondary observables to achieve long term stable operation.

公开(公告)号：US20240127102A1

公开(公告)日：2024-04-18

申请号：US18172227

申请日：2023-02-21

Applicant: IonQ, Inc.

Inventor： Andrii MAKSYMOV ,  Jason Hieu Van NGUYEN ,  Igor Leonidovich MARKOV ,  Yunseong NAM

IPC: G06N10/70 ,  G06N10/20

CPC classification number: G06N10/70 ,  G06N10/20

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, and more particularly, to the use of computational symmetries for error mitigation in quantum computations in QIP systems.

公开(公告)号：US20230129122A1

公开(公告)日：2023-04-27

申请号：US18048268

申请日：2022-10-20

Applicant: IonQ, Inc.

Inventor： Shantanu DEBNATH ,  Vandiver CHAPLIN ,  Kristin M. BECK ,  Melissa JAMESON ,  Jason Hieu Van NGUYEN

IPC: G06N10/70 ,  H03K17/92

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, and more particularly, to techniques for removing or correcting for translation errors between a programmed strength and an applied strength of quantum gates. A method is described that includes determining, for each quantum gate in a quantum operation, a non-linearity between an applied strength of a laser beam used for the respective quantum gate and a programmed strength intended to be applied by the laser beam for the respective quantum gate. The method further includes linearizing the non-linearity for each quantum gate and storing linearization information in memory. Moreover, the method includes applying the linearization information to correct for the non-linearity when implementing each quantum gate as part of the quantum operation. A system is also described that is configured to implement the method described above.

公开(公告)号：US20230039901A1

公开(公告)日：2023-02-09

申请号：US17880399

申请日：2022-08-03

Applicant: IonQ, Inc.

Inventor： Kevin Antony LANDSMAN ,  Aleksey BLINOV ,  Shantanu DEBNATH ,  Vandiver CHAPLIN ,  Kristin Marie BECK ,  Andrew Maps DUCORE ,  Melissa JAMESON ,  Jason Hieu Van NGUYEN ,  Felix TRIPIER

IPC: G06N10/40 ,  G06N5/00

Abstract: Techniques to address the problem of having micromotion and stray fields affect trapped ions and the operation of QIP systems based on trapped ions are described. For example, one technique or approach may involve collecting scattered photons off the ions using a resonant or near-resonant oscillating electric field (e.g., a laser beam or a microwave source) with some projection in the axis or direction of micromotion that one wishes to reduce. Another technique or approach may include raising and lowering the trapping potentials to see how the ion position changes. The information collected from these techniques may be used to provide appropriate adjustments. Accordingly, the present disclosure describes methods, scripts, or techniques that minimize the effects of micromotion.