公开(公告)号：US20210399763A1

公开(公告)日：2021-12-23

申请号：US17349457

申请日：2021-06-16

Applicant: IONQ, INC.

Inventor： Kristin Marie BECK ,  Vandiver CHAPLIN

IPC: H04B3/32 ,  H04B10/2575

Abstract: Aspects of the present disclosure describe controlling coherent crosstalk errors in multi-channel acousto-optic modulators (AOMs). A method, an AOM system, and a quantum information processing (QIP) system are described in which a separate radio-frequency (RF) signal is generated and applied to each of multiple channels of a multi-channel AOM using an arbitrary waveform generator (AWG) to turn on each of those channels, where each channel that is turned on interacts with one or more of the remaining channels that are not turned on to cause a combined crosstalk effect on those remaining channels. Each channel has a single respective AWG. Moreover, a correcting RF signal is generated and applied to the one or more of the remaining channels using a respective AWG to produce an acoustic wave that corrects for the combined crosstalk effect such that the one or more of the remaining channels are not unintentionally turned on.

公开(公告)号：US20240289100A1

公开(公告)日：2024-08-29

申请号：US18388932

申请日：2023-11-13

Applicant: IonQ Inc.

Inventor： Vandiver CHAPLIN ,  Jason AMINI

IPC: G06F8/41 ,  G06N10/00

CPC classification number: G06F8/41 ,  G06N10/00

Abstract: Systems and techniques are provided for pulse generation. A classical computing device may receive a program source code including quantum operations. The program source code may be compiled into a compiled program including the one or more quantum operations. Pulse shapes that a pulse shape library indicates corresponds to each of the quantum operations may be determined. Pulse instructions based on the one or more pulse shapes that the pulse shape library indicates corresponds to each of the quantum operations may be generated. Binary format instructions may be generated based on the pulse instructions. The binary format instruction may encode the pulse instructions in binary packets using a binary code of a field programmable gate array (FPGA) of a quantum computing device.

公开(公告)号：US20240110876A1

公开(公告)日：2024-04-04

申请号：US18540391

申请日：2023-12-14

Applicant: IonQ, Inc.

Inventor： Shantanu DEBNATH ,  Vandiver CHAPLIN

IPC: G01N21/65 ,  G06N10/40

CPC classification number: G01N21/65 ,  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, and more particularly, to the correction of light-shift effects in trapped-ion quantum gates. Techniques are described for light-shift correction of single qubit gates when the gates are implemented using counter-propagating Raman laser beams and when the gates are implemented using co-propagating Raman laser beams. Moreover, techniques are also described for light-shift correction of two-qubit gates.

公开(公告)号：US20230132301A1

公开(公告)日：2023-04-27

申请号：US18048300

申请日：2022-10-20

Applicant: IonQ, Inc.

Inventor： Shantanu DEBNATH ,  Vandiver CHAPLIN

IPC: G01N21/65 ,  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, and more particularly, to the correction of light-shift effects in trapped-ion quantum gates. Techniques are described for light-shift correction of single qubit gates when the gates are implemented using counter-propagating Raman laser beams and when the gates are implemented using co-propagating Raman laser beams. Moreover, techniques are also described for light-shift correction of two-qubit gates.

公开(公告)号：US20250021859A1

公开(公告)日：2025-01-16

申请号：US18770347

申请日：2024-07-11

Applicant: IonQ, Inc.

Inventor： Felix TRIPIER ,  Redeat ALEMU ,  Joel Zvi APISDORF ,  Vandiver CHAPLIN ,  Steven FRIEDMAN ,  Carl HENNING ,  Mike WILLIAMS

IPC: G06N10/70 ,  G06N10/20

Abstract: Systems and methods are described for use in the implementation and/or operation of quantum information processing (QIP) systems, and more particularly, to implementation of streaming gates.

公开(公告)号：US20240062087A1

公开(公告)日：2024-02-22

申请号：US18458783

申请日：2023-08-30

Applicant: IonQ, Inc.

Inventor： Vandiver CHAPLIN ,  Yunseong NAM

IPC: G06N10/00 ,  G06F9/38 ,  G06F8/41

CPC classification number: G06N10/00 ,  G06F9/3885 ,  G06F8/443

Abstract: A system and method is provided for optimizing an input quantum circuit. An exemplary method includes searching a library of templates to find, by compiling abstract gate operations into a set of hardware-specific operations that manipulate qubit states, a template of quantum circuit gates that performs a predetermined function and that matches a set of quantum circuit gates in the input quantum circuit that performs the predetermined function; and replacing the set of quantum circuit gates in the input quantum circuit with the template of quantum circuit gates when the template of quantum circuit gates has a lower quantum cost than the set of quantum circuit gates based on estimated execution times. Moreover, the method is executed in a pipeline in combination with at least quantum circuit compilation.

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.