公开(公告)号：US20220229757A1

公开(公告)日：2022-07-21

申请号：US17712856

申请日：2022-04-04

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Yuao CHEN ,  Shusen LIU ,  Ningfeng WANG

IPC: G06F11/34 ,  G06N10/20

Abstract: A method includes: obtaining a set of characterizing equations for a quantum gate to be benchmarked; in response to the set of characterizing equations including another quantum gate, determining whether the another quantum gate has been benchmarked as trusted; in response to the another quantum gate having been benchmarked as trusted, successively performing a quantum gate operation on each characterizing equation in the set of characterizing equations to obtain, for each characterizing equation, a corresponding measurement result; for each characterizing equation, determining whether the measurement result for the characterizing equation meets an expected result in the characterizing equation for characterization; and in response to the measurement results for each characterizing equation in the set of characterizing equations meeting the expected result, benchmarking the quantum gate to be benchmarked as trusted.

公开(公告)号：US20240037436A1

公开(公告)日：2024-02-01

申请号：US18483184

申请日：2023-10-09

Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

Inventor： Zelin MENG ,  Shusen LIU ,  Xueyi GUO ,  Zixian YAN ,  Wenxue ZHANG ,  Yang HE

IPC: G06N10/20 ,  G06F9/50

CPC classification number: G06N10/20 ,  G06F9/5027

Abstract: A system for processing a quantum task, a method, a device and a storage medium are provided. The system includes: a user terminal, configured to acquire basic measurement and control parameters of a superconducting quantum computer, generate a quantum task consisting of a quantum pulse and a quantum pulse gate based on the basic measurement and control parameters and an intended task purpose, and send the quantum task to a quantum hardware client; the quantum hardware client, configured to parse the quantum task into a queue of quantum pulses arranged in a time sequence, and send the queue of quantum pulses to the superconducting quantum computer; and the superconducting quantum computer, configured to execute quantum pulse instructions in the queue of quantum pulses in the time sequence, and return an obtained task result to the user terminal.

公开(公告)号：US20210194487A1

公开(公告)日：2021-06-24

申请号：US17021055

申请日：2020-09-15

Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

Inventor： Shusen LIU ,  Runyao DUAN

IPC: H03K19/195 ,  G06N10/00 ,  H03K3/38

Abstract: Provided are a quantum pulse determining method, apparatus, device and readable storage medium, where basic pulses corresponding to basic logic gates are set in advance, the method including: when manipulating a qubit according to a quantum logic gate, splitting the quantum logic gate to obtain sub-logic gates; and searching for sub-pulses corresponding to the sub-logic gates among the basic pulses, and manipulating the qubit according to the sub-pulse. Basic pulses are set in advance in the method, apparatus, device and readable storage medium provided by the embodiments. When a qubit is to be manipulated, the quantum logic gate can be split into multiple sub-logic gates, and then sub-pulses corresponding to the sub-logic gates are searched for among the basic pulses. Thus, sub-pulses read can be used directly to manipulate the qubit, avoiding the computing power consumed in generating pulses according to the quantum logic gate, thereby improving an operation speed.

公开(公告)号：US20230095725A1

公开(公告)日：2023-03-30

申请号：US18071567

申请日：2022-11-29

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Shusen LIU ,  Danxiang WU ,  Shenjin LV

IPC: G06N10/20

Abstract: A method of processing a quantum circuit, an electronic device, and a storage medium. A specific implementation solution includes: determining a program logic graph of the quantum circuit, wherein the program logic graph indicates a plurality of logic bits and a logic relationship between the plurality of logic bits; mapping at least part of the plurality of logic bits to corresponding physical bits in a plurality of physical bits in the quantum circuit according to measurement fidelities of the plurality of physical bits and the logic relationship, so as to obtain an initial mapping relationship; and obtaining a target mapping relationship from the plurality of logic bits to the plurality of physical bits according to the initial mapping relationship and a chip coupling graph of the quantum circuit.

公开(公告)号：US20220076154A1

公开(公告)日：2022-03-10

申请号：US17454960

申请日：2021-11-15

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Xin WANG ,  Lijing JIN ,  Shusen LIU ,  Zelin MENG ,  Zixian YAN

IPC: G06N10/00

Abstract: A control pulse generation method, a system, a device and a storage medium are provided, which are related to the field of quantum computing. The method includes: acquiring a system Hamiltonian; acquiring an initial control pulse of a quantum logic gate included in a parameterized quantum circuit to obtain an initial pulse sequence for a gate sequence formed for all the quantum logic gates in the parameterized quantum circuit, which is obtained through simulation based on the system Hamiltonian; acquiring system state information of the quantum system obtained after applying the initial pulse sequence to the target quantum hardware device; adjusting a parameter of the parameterized quantum circuit based on a relationship between the system state information and target state information needed to be achieved by the target quantum control task, to adjust a pulse parameter of the initial pulse sequence to obtain a target pulse sequence.