Reduction and/or mitigation of crosstalk in quantum bit gates

A computer-implemented method, comprising:

• implementing, by a system operatively coupled to a processor, a control sequence that comprises a single pulse type for a first quantum bit and at least a second quantum bit of a quantum circuit;
• synchronizing, by the system, a first pulse of a first channel of the first quantum bit and at least a second pulse of at least a second channel of the second quantum bit;
• and
• simultaneously applying, by the system, the first pulse to the first quantum bit and the second pulse to at least the second quantum bit.

A computer program product that removes crosstalk in quantum bit gates, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions are executable by a processor to cause the processor to:

• implement a control sequence that comprises a single pulse type for a first quantum bit and at least a second quantum bit of a quantum circuit;
• synchronize a first pulse of a first channel of the first quantum bit and at least a second pulse of at least a second channel of the second quantum bit;
• and
• simultaneously apply the first pulse to the first quantum bit and the second pulse to at least the second quantum bit.

A system, comprising:

• an electrical waveform generator that generates a single channel waveform to facilitate distribution to qubits of a quantum circuit;
• one or more configurable amplitude scalers that scale the single channel to facilitate calibration of the qubits;
• and
• one or more configurable phase-shifters that implement frame changes at the qubits, wherein a first configurable amplitude scaler of the one or more configurable amplitude scalers and a first configurable phase-shifter of the one or more configurable phase-shifters are utilized for a first qubit of the qubits, and wherein a second configurable amplitude scaler of the one or more configurable amplitude scalers and a second configurable phase-shifter of the one or more configurable phase-shifters are utilized for a second qubit of the qubits.

A system, comprising:

• an arbitrary waveform generator that generates a two channel waveform to generate pulses for qubits of a quantum circuit;
• configurable attenuators that scale the pulses to facilitate calibration of the qubits, wherein pairs of attenuators of the configurable attenuators are implemented at respective qubits of the qubits;
• and
• configurable phase-shifters that implement frame changes at the qubits, wherein respective phase-shifters of the configurable phase-shifters are implemented at respective qubits of the qubits.