Laser beam alignment driving circuit board and ion trap quantum computer

Abstract

The invention discloses a laser beam alignment driving circuit board which comprises a digital-analog conversion module and output channel modules. The input end of the digital-analog conversion module is electrically connected with a main control board of the ion trap quantum computer, and the digital-analog conversion module is used for receiving a digital signal sent by the main control board of the ion trap quantum computer and converting the digital signal into an analog signal; a plurality of output channel modules are provided; the input end of each output channel module is electrically connected with the output end of the digital-analog conversion module; the output ends are electrically connected with the corresponding piezoelectric ceramics of the ion trap quantum computer respectively, and are used for filtering and amplifying the analog signals and then sending the analog signals to the corresponding piezoelectric ceramics; and then the corresponding piezoelectric ceramics are driven and controlled to move, so that the position of the laser beam is controlled. According to the invention, accurate control of multiple paths of laser beams can be realized. The invention further discloses an ion trap quantum computer.

Description

technical field [0001] The invention relates to a driving circuit, in particular to a laser beam alignment driving circuit board and an ion trap quantum computer. Background technique [0002] The ion trap quantum computer is a device that uses direct current and high-frequency alternating current to form an electric field region, so that ions are stably trapped in the electric field region. In fact, the state operation of ions is realized by controlling specific parameters of the laser. However, at present, for the ion trap quantum computer, it controls not only one ion, but several to hundreds of ions. Each ion is an operable qubit, and the high-speed operation of an ion trap quantum computer requires the laser to be precisely aimed at each ion. The laser alignment of ions in the current ion trap quantum computer is achieved by using an acousto-optic modulator. However, the price of this acousto-optic modulator is high and the number of operable channels is limited, so it...

AI Technical Summary

Problems solved by technology

In the current ion trap quantum computer, the laser alignment of ions is realized by using an acousto-optic modulator. However, the price of this acousto-optic modulator is high and the number of operable channels is limited, so it is difficult to adapt to dozens of existing pairs or even the last one. ionic state manipulation

[0003] In addition, in addition to the use of acousto-optic modulators, there are also special piezoelectric controllers, such as MD693B, but this device has problems such as a small number of laser beams that can be controlled at the same time, high energy consumption, poor stability, and large noise.

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