公开(公告)号：US20230267357A1

公开(公告)日：2023-08-24

申请号：US17902311

申请日：2022-09-02

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

Inventor： Xin WANG ,  Xuanqiang ZHAO ,  Zhan YU

IPC: G06N10/20

CPC classification number: G06N10/20

Abstract: Provided are a simulation method of a quantum system, a computing device, and a storage medium relating to the field of data processing, and in particular to the field of quantum computing. The method includes: acquiring at least two measurement results; calculating a loss value of a loss function representing an average trace distance; and taking, in the case where the loss value of the loss function satisfies an iteration requirement, a preset parameterized quantum circuit with an adjustable parameter at a first parameter value as a target parameterized quantum circuit.

公开(公告)号：US20230186137A1

公开(公告)日：2023-06-15

申请号：US18164334

申请日：2023-02-03

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

Inventor： Xin WANG ,  Lijing JIN ,  Zhan YU ,  Chenghong ZHU ,  Xuanqiang ZHAO

IPC: G06N10/40 ,  G06N10/20

CPC classification number: G06N10/40 ,  G06N10/20

Abstract: The present disclosure provides a quantum circuit processing method and a quantum circuit processing device on a quantum chip, and an electronic device, and it relates to the field of quantum computing technology, in particular to the field of quantum circuit technology. The method includes: obtaining a first swap fidelity for measuring connectivity of the quantum chip, the first swap fidelity being determined in accordance with first information, the first information being used to represent a topological structure of the quantum chip, the topological structure indicating that the quantum chip includes at least two physical quantum bits, the first swap fidelity being used to represent an average state maintenance level of logic quantum bits obtained through analog exchanging quantum states of any two of the physical quantum bits; and performing quantum circuit processing on the quantum chip in accordance with the first swap fidelity.

公开(公告)号：US20240119330A1

公开(公告)日：2024-04-11

申请号：US18323026

申请日：2023-05-24

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

Inventor： Zhan YU ,  Lei ZHANG ,  Xin WANG

IPC: G06N10/20

CPC classification number: G06N10/20

Abstract: Provided is a method for determining a degree of quantum entanglement, a computing device and a storage medium. The method includes: determining a target parameter value of a target adjustable parameter in a sub-circuit of a target quantum circuit, obtaining state information of the auxiliary register in the target quantum circuit, in a case of the target adjustable parameter has the target parameter value, a first input state of the auxiliary register is a preset initial state, and a second input state of the main register includes at least the first quantum state; estimating the k-order trace of the first quantum state under the first error condition based on the state information of the auxiliary register; and determining a degree of entanglement corresponding to the first quantum state based on at least the k-order trace of the first quantum state.