公开(公告)号：US11879847B2

公开(公告)日：2024-01-23

申请号：US18048300

申请日：2022-10-20

Applicant: IonQ, Inc.

Inventor： Shantanu Debnath ,  Vandiver Chaplin

IPC: G01J3/44 ,  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：US11764828B2

公开(公告)日：2023-09-19

申请号：US17349457

申请日：2021-06-16

Applicant: IONQ, INC.

Inventor： Kristin Marie Beck ,  Vandiver Chaplin

IPC: H04B10/2575 ,  H04B3/32

CPC classification number: 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.