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Threshold straight line determination method and device based on measurement track

A method for determining a method and a trajectory, which is applied in the field of determining the threshold line based on the measurement trajectory, which can solve the problem of reducing the accuracy and precision of the threshold line, affecting the accuracy and precision of quantum state discrimination, and cannot guarantee the reliability and stability of the quantum computing system. And other issues

Active Publication Date: 2019-09-06
HEFEI ORIGIN QUANTUM COMP TECH CO LTD
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  • Application Information

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Problems solved by technology

Then directly use the perpendicular line connecting the first coordinate point and the second coordinate point as the threshold straight line, which reduces the accuracy and precision of the obtained threshold straight line, thereby affecting the accuracy and precision of quantum state discrimination, and thus cannot guarantee the quantum Computing System Reliability and Stability

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  • Threshold straight line determination method and device based on measurement track
  • Threshold straight line determination method and device based on measurement track
  • Threshold straight line determination method and device based on measurement track

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Embodiment Construction

[0037] 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.

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are us...

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Abstract

The invention belongs to the field of quantum measurement and control, and specifically discloses a threshold straight line determination method and device based on a measurement track. The thresholdstraight line determination method comprises the following steps: obtaining measurement data of a quantum bit reading signal when a quantum bit is in a determined quantum state, and carrying out complex number transformation processing on the measurement data to obtain original data corresponding to the quantum bit reading signal when the quantum bit is in the determined quantum state; obtaining ameasurement track corresponding to the quantum bit reading signal according to the original data; obtaining a first type of coordinate point data, a first statistical center coordinate point, a second type of coordinate point data and a second statistical center coordinate point according to the measurement track; and determining a threshold straight line according to the first type of coordinatepoint data, the first statistical center coordinate point, the second type of coordinate point data and the second statistical center coordinate point. The threshold straight line determination method can improve the data preprocessing precision and the obtained threshold linear precision, and can improve the reliability and the stability of the quantum computing system.

Description

technical field [0001] The invention belongs to the field of quantum measurement and control, in particular to a method and device for determining a threshold straight line based on a measurement track. Background technique [0002] Qubit information refers to the quantum state of the qubit. The basic quantum states are |0> state and |1> state. After the qubit is operated, the quantum state of the qubit changes. On the quantum chip, it is reflected as After the quantum chip is executed, the quantum state of the qubit changes, which is the execution result of the quantum chip, which is carried and transmitted by the qubit read signal. [0003] Analyzing the quantum state through the qubit reading signal is one of the important steps to realize the feedback control of quantum computing. In the actual implementation, the qubit reading is usually obtained when the quantum state is in two known quantum states that can be distinguished from each other. signal, and then perf...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06N10/00
CPCG06N10/00G06F30/20
Inventor 孔伟成
Owner HEFEI ORIGIN QUANTUM COMP TECH CO LTD
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