General quantum computer central-processor and manipulation method thereof

A central processing unit and quantum computer technology, applied in the field of quantum computers, can solve problems such as low fidelity, large interference, and low fidelity of quantum entangled states

Active Publication Date: 2018-05-15
姜年权
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  • 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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  • General quantum computer central-processor and manipulation method thereof
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  • General quantum computer central-processor and manipulation method thereof

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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 described in further 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 quantum computer central processing unit provided by the embodiment of the present invention, which is constructed by coupling the qubits together thro...

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Abstract

The embodiment of the invention discloses a manipulation method of a general quantum computer central-processor. The method includes: preparing all quantum bits to initial status; selecting a currentquantum bit coupling mode; determining quantum bits, on which coupling communication is to be carried out, according to the selected current quantum bit coupling mode, and respectively carrying out corresponding external-magnetic-flux and gate voltage adjustment on the quantum bits on which coupling communication is to be carried out and the quantum bits other than the same; and selecting a next-step operation, and determining specific manipulation on all the quantum bits according to the selected current operation. By implementing the method, problems of a coupling operation between any two quantum bits and parallel coupling operations among multiple quantum bits can be solved, and fidelity of quantum status manipulation and general quantum computation realized by a series of coupling operations is higher.

Description

technical field [0001] The present 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 q...

Claims

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Application Information

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IPC IPC(8): G06N99/00
CPCG06N10/00
Inventor 姜年权
Owner 姜年权
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