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Method and device for constructing quantum network and quantum network

A quantum and network technology, applied in the field of quantum information, can solve problems that are not conducive to large-scale quantum computing and quantum network implementation, and achieve the effect of avoiding crosstalk

Active Publication Date: 2021-05-11
TSINGHUA UNIV
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Problems solved by technology

[0005] To sum up, in the process of realizing the entanglement of atoms and photons, crosstalk errors should be strictly avoided. The method of avoiding crosstalk errors in related technologies is not conducive to the realization of large-scale quantum computing and quantum networks.

Method used

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  • Method and device for constructing quantum network and quantum network
  • Method and device for constructing quantum network and quantum network
  • Method and device for constructing quantum network and quantum network

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Embodiment Construction

[0066] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0067] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0068] Figure 5 A flowchart of a method for constructing a quantum network according to an embodiment of the present invention, such as Figure 5 shown, including:

[0069] Step 501, for atoms including more than two long-lived energy levels, determine...

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Abstract

The invention discloses a method and a device for constructing a quantum network, and the quantum network, and the method comprises the steps: determining two long-life energy levels of an atom comprising more than two long-life energy levels as an operation energy level and an auxiliary energy level; constructing a quantum network according to the atoms at the operation energy level and the atoms at the auxiliary energy level, wherein the long-life energy levels comprise energy levels of which the energy level life is greater than the quantum operation duration of a first preset multiple, and each long-life energy level comprises more than two sub-energy levels used for encoding quantum information. According to the embodiment of the invention, the same atom with different long-life energy levels is used for constructing the quantum network, crosstalk in the process of realizing atom and photon entanglement is avoided, and technical support is provided for quantum calculation and application expansion of the quantum network.

Description

technical field [0001] This article involves but is not limited to quantum information technology, especially a method, device and quantum network for constructing a quantum network. Background technique [0002] Quantum networks are an important element in the field of quantum information. Quantum information is the interdisciplinary application of quantum mechanics and information theory. Using the principle of quantum entanglement, it can realize secure communication that is currently lacking in the field of classical information and quantum computing that surpasses classical computing capabilities. Quantum networks are mainly divided into two categories: one is quantum communication network, the main goal is to achieve secure communication. The second is the quantum computing network, which is one of the main ways to expand the quantum computing platform. Quantum computing has super computing power on some specific issues, so it has attracted much attention. However, t...

Claims

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Application Information

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IPC IPC(8): H04B10/70
CPCH04B10/70
Inventor 段路明杨蒿翔
Owner TSINGHUA UNIV
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