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    • 2. 发明申请
    • A CONTROL ARCHITECTURE FOR A QUANTUM COMPUTER
    • 量子计算机的控制架构
    • WO2004086295A1
    • 2004-10-07
    • PCT/AU2004/000395
    • 2004-03-26
    • QUCOR PTY LTDCLARK, RobertBARRETT, NeilREILLY, DavidBUEHLER, Tilo
    • CLARK, RobertBARRETT, NeilREILLY, DavidBUEHLER, Tilo
    • G06N1/00
    • H03H7/383B82Y10/00G06N99/002H03H7/40
    • A control circuit (155), for applying signals to and detecting the status of a qubit of a quantum computer, is operated at a relatively low temperature (on the order of mK). An auxiliary circuit, for sending command signals to and receiving qubit status signals form the control circuit (155), is operated at room temperature. The control circuit (155) implements quantum error correction, and the auxiliary circuit may perform signal processing including pattern matching to determine the status of the qubit. The control circuit (155) may comprise impedance matching circuits (166, 167) with variable resistors such as field effect transistors (171), and generate reflected impedance-mismatch signals form single electron transistors (160, 161) coupled to the qubit. The control circuit (155) may further comprise tank circuits operating at frequencies higher than 500MHz, which allows the use of relatively small inductors (162, 163) for optimal integration, particularly for multiple qubit systems.
    • 用于将信号施加到量子计算机的量子位的状态并检测量子计算机的状态的控制电路(155)在相对较低的温度(约为mK)下运行。 用于向控制电路(155)发送命令信号并接收量子位状态信号的辅助电路在室温下工作。 控制电路(155)进行量子纠错,辅助电路可以执行包括模式匹配的信号处理,以确定量子位的状态。 控制电路(155)可以包括具有诸如场效应晶体管(171)的可变电阻器的阻抗匹配电路(166,167),并且从耦合到量子位的单个电子晶体管(160,161)产生反射的阻抗失配信号。 控制电路(155)还可以包括以高于500MHz的频率工作的储能电路,其允许使用相对小的电感器(162,163)来实现最佳集成,特别是对于多个量子位系统。