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Ion trap driving system and control method thereof

A technology of driving system and control method, which is applied in the field of quantum computing to achieve the effect of improving stability and quality

Active Publication Date: 2022-05-10
QUDOOR TECH INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a module in a single ion trap circuit is disturbed by the outside world and has a short-term abnormality, the ion trap drive system will also have a short-term abnormality. Therefore, these problems still need to be overcome to improve the stability of the ion trap drive system.

Method used

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  • Ion trap driving system and control method thereof
  • Ion trap driving system and control method thereof
  • Ion trap driving system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] like figure 1 As shown, the ion trap driving system provided by the embodiment of the present invention includes N ion trap driving circuits for providing driving signals for the ion trap, where N is a natural number greater than / equal to 2.

[0043] Specifically, the formula , to determine the number N of ion trap driving circuits in the ion trap driving system. in, P 1 is the error probability of each ion trap driving circuit, P 2 The pre-determined probability of no error for the ion trap drive system.

[0044] Each ion trap driving circuit is connected in parallel.

[0045] The signal source is respectively connected with each ion trap driving circuit, and is used for providing a single-frequency microwave signal for each ion trap driving circuit.

[0046] Specifically, the signal source is generally a signal generator composed of a crystal oscillator and a digital-to-analog circuit.

[0047] Optionally, each ion trap driving circuit includes a radio freque...

Embodiment 2

[0050] like figure 2 As shown, the control method of the ion trap driving system provided by the embodiment of the present invention includes the following steps:

[0051] S101. Acquire the signal-to-noise ratios of the driving signals output by the ion trap driving circuits in the ion trap driving system respectively, to obtain a first set of signal-to-noise ratios.

[0052] S102. According to the value of each signal-to-noise ratio in the first signal-to-noise ratio set, select a corresponding ion trap driving circuit in the ion trap driving system as an optimal driving circuit.

[0053]Optionally, step S102 specifically includes:

[0054] Judging whether there is a signal-to-noise ratio in the first set of signal-to-noise ratios whose value is lower than the set first threshold, and if so, removing the signal-to-noise ratio to obtain a second set of signal-to-noise ratios and discarding the corresponding set of signal-to-noise ratios The ion trap driving circuit is used ...

Embodiment 3

[0080] like image 3 As shown, the control system of the ion trap driving system provided by the embodiment of the present invention includes:

[0081] The acquisition module is configured to respectively acquire the signal-to-noise ratios of the drive signals output by the ion trap drive circuits in the ion trap drive system in Embodiment 1, to obtain a first set of signal-to-noise ratios;

[0082] The selection module is configured to select the corresponding ion trap driving circuit in the ion trap driving system as the optimal driving circuit according to the value of each signal-to-noise ratio in the first signal-to-noise ratio set.

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Abstract

The ion trap driving system and its control method disclosed in the present invention relate to the field of quantum computing. The first signal-to-noise ratio set is obtained by separately obtaining the signal-to-noise ratios of the driving signals output by each ion trap driving circuit in the ion trap driving system. According to the The value of each signal-to-noise ratio in the first signal-to-noise ratio set, selects the corresponding ion trap drive circuit in the ion trap drive system as the optimal drive circuit, which improves the stability of the ion trap drive system and the output of the drive signal. quality.

Description

technical field [0001] The invention relates to the technical field of quantum computing, in particular to an ion trap driving system and a control method thereof. Background technique [0002] In the field of quantum computing, the noise-stabilized ion trap driving circuit usually consists of radio frequency oscillators, resonators, power amplifiers, etc., which are easily affected by gain fluctuations, temperature drift, and other factors. Ion traps are particularly sensitive to these factors because the RF potential directly determines the harmonic oscillation frequency of the trapped ions. A stable ion trap driving circuit is crucial for applications such as quantum information processing and preparation of quantum states, atomic interferometry, etc. [0003] The current ion trap driving system is mainly composed of a single ion trap driving circuit. When a module in a single ion trap driving circuit is damaged, the ion trap driving system will stop working. When a mod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/02G06N10/40
CPCH01J49/022G06N10/00
Inventor 陈柳平王其兵万相奎李伍一
Owner QUDOOR TECH INC