MICROWAVE READOUT FOR FLUX-BIASED QUBITS
    5.
    发明申请
    MICROWAVE READOUT FOR FLUX-BIASED QUBITS 有权
    微处理器为微处理器提供微波读取

    公开(公告)号:US20090289638A1

    公开(公告)日:2009-11-26

    申请号:US12126015

    申请日:2008-05-23

    IPC分类号: G01R27/28 H01L39/22

    CPC分类号: G06N99/002 B82Y10/00

    摘要: A method for determining whether a quantum system comprising a superconducting qubit is occupying a first basis state or a second basis state once a measurement is performed is provided. The method, comprising: applying a signal having a frequency through a transmission line coupled to the superconducting qubit characterized by two distinct, separate, and stable states of differing resonance frequencies each corresponding to the occupation of the first or second basis state prior to measurement; and measuring at least one of an output power or phase at an output port of the transmission line, wherein the measured output power or phase is indicative of whether the superconducting qubit is occupying the first basis state or the second basis state.

    摘要翻译: 提供了一旦确定包括超导量子位的量子系统是否在执行测量时占据第一基础状态或第二基础状态的方法。 该方法包括:通过耦合到超导量子位的传输线施加具有频率的信号,其特征在于两个不同的,独立的和稳定的不同共振频率的状态,每个共振频率对应于在测量之前占用第一或第二基准状态; 并且测量所述传输线的输出端口处的输出功率或相位中的至少一个,其中所述测量的输出功率或相位指示所述超导量子位是否占据所述第一基准状态或所述第二基准状态。