QUANTUM COMPUTER CONTROL DEVICE

To provide a control device of a quantum computer that excels in usability, scalability, and robustness.SOLUTION: A control device 110 of a quantum computer 100 comprises: a server 130 that calculates a waveform signal for controlling a quantum bit system 120 comprising a plurality of quantum bits;...

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Bibliographic Details
Main Authors NEGORO MAKOTO, MORISAKA SHINICHI, SHIOMI HIDEHISA, KOIKE KEISUKE, MIYOSHI TAKEFUMI
Format Patent
LanguageEnglish
Japanese
Published 29.08.2023
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Summary:To provide a control device of a quantum computer that excels in usability, scalability, and robustness.SOLUTION: A control device 110 of a quantum computer 100 comprises: a server 130 that calculates a waveform signal for controlling a quantum bit system 120 comprising a plurality of quantum bits; and a plurality of signal processing units 140-1 to 140-N that generate, on the basis of the waveform signal, electromagnetic signals to be projected to the quantum bit system. The signal processing units each comprise: a logic device that performs digital signal processing on the waveform signal to generate a baseband signal; a digital oscillator that generates an oscillation signal; a mixer that mixes the baseband signal and the oscillation signal to output a mixed signal; a DA converter that performs DA conversion on the mixed signal to obtain an analog signal; an RF circuit that generates an electromagnetic signal from the analog signal; and an AD converter that performs AD conversion on the signal input from the RF circuit.SELECTED DRAWING: Figure 2 【課題】ユーザビリティ、スケーラビリティ、ロバスト性などに優れた量子コンピュータの制御装置を提供する。【解決手段】量子コンピュータ100の制御装置110は、複数の量子ビットからなる量子ビットシステム120を制御するための波形信号を算出するサーバ130と、波形信号に基づいて量子ビットシステムに照射する電磁波信号を生成する複数の信号処理ユニット140-1~140-Nを備える。各信号処理ユニットは、波形信号にデジタル信号処理を施してベースバンド信号を生成するロジックデバイスと、発振信号を生成するデジタル発振器と、ベースバンド信号と発振信号とをミキシングして混合信号を出力するミキサと、混合信号にDA変換を施してアナログ信号を得るDA変換器と、アナログ信号から電磁波信号を生成するRF回路と、RF回路からの入力信号にAD変換を施すAD変換器とを備える。【選択図】図2
Bibliography:Application Number: JP20230097079