Test method of quantum chip

Abstract

The invention discloses a test method of a quantum chip, and belongs to the field of the test of quantum chips. Currently, during the test of the quantum chip, the efficiency of peak and valley searching is extremely low, and the method can hardly be applied to the test of the large-scale integrated quantum chips. According to the test method of the quantum chip, in the test, a peak value or a valley value of an oscillation waveform needs to be found out in an oscillogram for the test, the wave peak or valley is automatically recognized according to obtained data, a position of the peak valueor the valley value is automatically indicated, and the data can be automatically saved; the ideas of a random walk algorithm and a simulated annealing algorithm are combined and applied to the fieldof the test of the quantum chips; during the test of the quantum chip, the oscillation frequency is high, and the waveform is unstable; and an accurate method is required for the corresponding test. According to the scheme, the search and statistics of the peak value or the valley value can be accurately performed through an automation method, the efficiency is high, and the accuracy is high.

Description

technical field [0001] The invention provides a quantum chip testing method, which belongs to the field of quantum chip testing. Background technique [0002] Quantum computers have become a key technology under research because of their ability to deal with mathematical problems more efficiently than ordinary computers, such as accelerating the time to crack RSA keys from hundreds of years to hours. However, the prototypes of quantum computers at this stage have a small number of qubits, and the actual processing speed is not as fast as that of classical computers. In order to solve this problem, people use quantum virtual machines to predict the behavior of quantum computers. This method is usually used to verify the correctness of quantum algorithms or quantum computer behaviors, and to guide the design of quantum algorithms and quantum computers. The quantum virtual machine is a simulation of the product of the unitary transformation matrix representing the quantum logi...

AI Technical Summary

Problems solved by technology

For manual positioning, you only need to click the data cursor in the upper left corner with the mouse, and you can quickly find out the peak and valley values ​​that need to be positioned with your eyes, and then you only need to click the left button of the mouse to successfully point. The data will be displayed in the image ( figure 1 3, x=6.532e+09, y=-41.33), we can save this data record, figure 1 There are three such valleys, so it needs to be clicked and recorded three times. If there are N points, it needs to be clicked and recorded N times. method

This method cannot be applied to large-scale integrated quantum chip testing at all

[0006] There are still some peak-finding and valley-finding methods such as second-order derivatives and zero convolution in the prior art, but there are also problems such as insensitivity to shoulder peaks and too complicated calculations

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