A general quantum computer central processing unit and its manipulation method

A central processing unit and quantum computer technology, applied in the field of quantum computers, can solve the problems of low fidelity, large interference, and low fidelity of quantum entangled states, and achieve the effect of high-fidelity universal quantum computing

Active Publication Date: 2021-11-02
姜年权
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with the direct capacitive coupling, the fidelity of the above-mentioned quantum bus coupling method is much lower, especially when more than three multi-qubits are coupled, the interaction between qubits will cause great interference, and the system coupling Quantum entanglement has low fidelity

Method used

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  • A general quantum computer central processing unit and its manipulation method
  • A general quantum computer central processing unit and its manipulation method
  • A general quantum computer central processing unit and its manipulation method

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Embodiment Construction

[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] In order to find the optimal coupling method with high fidelity, and realize the coupling operation between any two qubits and the parallel coupling operation between multiple qubits, the inventor designed the central processing unit of the quantum computer In order to connect a qubit correspondingly with a coupling capacitor, and connect all coupling capacitors directly to the same connection structure, that is, as figure 1 As shown, it is a central processing unit of a quantum computer provided by an embodiment of the present invention, which is constructed by coupling the qubits together ...

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Abstract

The embodiment of the present invention discloses a method for operating the central processor of a universal quantum computer. The method includes preparing each qubit to an initial state; selecting the current qubit coupling mode; Couple the connected qubits, and adjust the corresponding external magnetic flux and gate voltage respectively for the qubits to be connected and other qubits; select the next operation, and determine the current operation for each qubit Specific manipulation. The implementation of the invention can solve the coupling operation between any two qubits and the parallel coupling operation between multiple qubits, and the quantum state manipulation and universal quantum calculation realized by a series of coupling operations have high fidelity.

Description

technical field [0001] The invention relates to the technical field of quantum computers, in particular to a general-purpose quantum computer central processing unit and a manipulation method thereof. Background technique [0002] Quantum computers based on superposition and entanglement of quantum states have incomparable advantages over classical computers in solving some specific problems such as cryptanalysis and mass search. The huge potential has attracted governments of various countries and many large technology companies to invest in research and release research plans. [0003] At present, there are many physical systems that can realize quantum computing, such as optical systems, ion traps, quantum dots, and superconducting quantum circuits. Among them, the quantum circuit based on the Josephson effect, due to its advantages in manipulability and scalability, has become one of the internationally recognized physical carriers that are expected to realize quantum c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06N10/00
CPCG06N10/00
Inventor 姜年权
Owner 姜年权
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