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：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：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.