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Superconducting circuit structure, superconducting quantum chip and superconducting quantum computer

A quantum computer and circuit structure technology, applied in quantum computers, logic circuits using superconducting devices, computing, etc., can solve problems such as poor connectivity of qubits, achieve the effect of suppressing crosstalk, avoiding crosstalk, and realizing full connectivity

Pending Publication Date: 2020-05-01
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

Nevertheless, it cannot be ignored that the connectivity between qubits in superconducting circuit platforms is not good, and qubits can only be coupled with adjacent qubits.

Method used

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  • Superconducting circuit structure, superconducting quantum chip and superconducting quantum computer
  • Superconducting circuit structure, superconducting quantum chip and superconducting quantum computer
  • Superconducting circuit structure, superconducting quantum chip and superconducting quantum computer

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Embodiment Construction

[0046] Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0047] The basic unit of a superconducting quantum chip is a superconducting qubit (called a qubit in the embodiment of this application). In the existing technical implementation schemes, most of them use transmon qubits, and the only difference is the structure of the qubits, that is, the arrangement and coupling methods between the qubits are different. According t...

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Abstract

The invention discloses a superconducting circuit structure, a superconducting quantum chip and a superconducting quantum computer, and relates to the field of quantum calculation. According to the specific implementation scheme, the superconducting circuit structure comprises at least three calculation quantum bits; the bus qubit is connected with the calculation qubits, and equivalent coupling is generated between any two calculation qubits connected through the bus qubit; the coupling quantum bit is arranged between the calculation quantum bit and the bus quantum bit, connects the calculation quantum bit with the bus quantum bit and is used for regulating and controlling the coupling strength between the calculation quantum bit and the bus quantum bit; coupling between any two calculation quantum bits can be achieved, then quantum gate operation between any two calculation quantum bits is achieved, and meanwhile crosstalk between the calculation quantum bits can be effectively restrained.

Description

technical field [0001] This application relates to the field of computers, in particular to the field of quantum computing. Background technique [0002] Quantum computing, as a new type of computing model that is expected to surpass classical computing on certain issues, has many potential hardware implementations. At present, the more popular quantum hardware candidates with certain performance mainly include ion trap platforms and superconducting circuit platforms. Benefiting from the mature semiconductor integrated circuit Complementary Metal Oxide Semiconductor (CMOS) technology, the superconducting circuit platform is favored by the industry because of its better scalability. Recently, Google achieved quantum supremacy on a chip with 53 superconducting qubits. Nevertheless, it cannot be ignored that the connectivity between qubits in superconducting circuit platforms is not good, and qubits can only be coupled with adjacent qubits. Due to this limitation, two-qubit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N10/00
CPCG06N10/00H03K19/195G06F13/20G06N10/20G06N10/40H03K3/38
Inventor 晋力京段润尧
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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