Signal control system and method for quantum computing, and waveform calibration circuit

A signal control method for quantum computing, performed by a signal control system having a signal source, a waveform calibration circuit, a qubit control line, and a qubit module, the method comprising:

• generating, by the signal source, an original control signal;
• performing, by the waveform calibration circuit using at least one infinite impulse response (IIR) digital filter on the waveform calibration circuit, waveform calibration on the original control signal to obtain a calibrated control signal, including calculating, by the IIR digital filter, an output signal of the IIR digital filter according to an input signal of the IIR digital filter and a state value of the IIR digital filter;
• wherein:
• the state value of the IIR digital filter is updated each time a group of sampling points is sampled from the input signal, each group of sampling points comprises a plurality of sampling points, the state value of the IIR digital filter is identical for all sampling points in each group, and in the output signal of the IIR digital filter, values for all sampling points in each group are simultaneously computed within a same beat;
• and
• guiding, by the qubit control line, the calibrated control signal to the qubit module;
• and
• generating, by the qubit module, a qubit, the calibrated control signal acting on the qubit after passing through the qubit control line, to control the qubit.

A non-transitory computer-readable storage medium storing one or more instructions that, when executed by a signal control system having a signal source, a waveform calibration circuit, a qubit control line, and a qubit module, cause the signal control system to perform operations comprising:

• generating, by the signal source, an original control signal;
• performing, by the waveform calibration circuit using at least one infinite impulse response (IIR) digital filter on the waveform calibration circuit, waveform calibration on the original control signal to obtain a calibrated control signal, including calculating, by the IIR digital filter, an output signal of the IIR digital filter according to an input signal of the IIR digital filter and a state value of the IIR digital filter;
• wherein:
• the state value of the IIR digital filter is updated each time a group of sampling points is sampled from the input signal, each group of sampling points comprises a plurality of sampling points, the state value of the IIR digital filter is identical for all sampling points in each group, and in the output signal of the IIR digital filter, values for all sampling points in each group are simultaneously computed within a same beat;
• guiding, by the qubit control line, the calibrated control signal to the qubit module;
• and
• generating, by the qubit module, a qubit, the calibrated control signal acting on the qubit after passing through the qubit control line, to control the qubit.