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Quantum chip feedback control method

A feedback control, quantum technology, applied in program control, computer control, general control systems, etc., can solve the problems of insufficient qubit integration, quantum programs cannot be fully realized, etc., to ensure fast transmission and ensure recycling. Effect

Active Publication Date: 2019-04-09
ORIGIN QUANTUM COMPUTING TECH (HEFEI) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Due to the current level of integration of qubits on quantum chips is not high enough, many quantum programs cannot be fully realized

Method used

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  • Quantum chip feedback control method

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Embodiment Construction

[0024] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0025] Such as figure 1 As shown, the embodiment of the present invention provides a quantum chip feedback control method, including the following steps:

[0026] Step S1: the main control module controls the signal generation module to output qubit control signals.

[0027] Specifically, the main control module is a programmable control chip based on FPGA, and user logic modules, data storage modules, data processing modules, etc. can be configured inside, and the control instructions and control parameters used to control the signal generation module can be edited through the user logic module. For example: the control instruction is the generation time of the qubit control signal to be generated, etc., and the control parameter is the waveform shape parameter (such as amplitude, frequency...

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Abstract

The invention belongs to the field of quantum chip control, and in particular to a quantum chip feedback control method. The method comprises the following steps: a main control module controls a signal generation module to output a quantum bit control signal; a quantum bit makes response to the quantum bit control signal to change a logic state of the quantum bit; a quantum bit reading detectionmodule outputs a quantum bit reading detection signal; the quantum bit makes response to the quantum bit reading detection signal and outputs a quantum bit reading return signal carrying logic state information of the quantum bit; the main control module controls the quantum bit reading detection module to collect the quantum bit reading return signal and send the quantum bit reading return signalto the main control module at the same time, and the main control module processes the quantum bit reading return signal in real time to obtain the logic state of the quantum bit; and the main control module determines whether to adjust the quantum bit control signal according to the consistency of the logic state of the quantum bit and a preset logic state of the quantum bit. Under the assistance of the quantum chip feedback control method provided by the invention, the recycling of the quantum bit on a quantum chip can be achieved.

Description

technical field [0001] The invention belongs to the field of quantum chip control, in particular to a quantum chip feedback control method. Background technique [0002] The quantum chip is the core structure for realizing quantum computing. The quantum chip is composed of a large number of qubits. Each qubit is composed of a specific hardware circuit set on the quantum chip. Each qubit has at least two distinguishable logic states. Based on quantum programs, the logical state of qubits can be changed in a controlled manner, thereby realizing quantum computing. [0003] Due to the current level of integration of qubits on quantum chips is not high enough, many quantum programs cannot be fully realized. In order to realize and verify more quantum programs on the current limited quantum chip, it can be realized by recycling qubits. [0004] In order to realize the recycling of qubits, it is necessary to be able to read the logic state of qubits in real time and implement fee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423
Inventor 孔伟成
Owner ORIGIN QUANTUM COMPUTING TECH (HEFEI) CO LTD
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