Abstract: A quantum logic gate operation device, comprising: two-qubit system in which a control qubit and a target qubit are coupled; a cross resonance drive pulse irradiator irradiating the control qubit with a cross resonance drive pulse; an echo pulse irradiation unit irradiating the control qubit with an echo pulse; and a control unit. The control unit controls the echo pulse irradiation unit such that the echo pulse irradiation unit irradiates the cross resonance drive pulse of the first phase during the first period, irradiates the cross resonance drive pulse with continuously changing the phase of the cross resonance drive pulse from the first phase to the second phase while maintaining the intensity of the cross resonance drive pulse during the second period, irradiates the cross resonance drive pulse of the second phase during the third period and irradiates an echo pulse during the second period.

Abstract: Techniques facilitating hardware-efficient calibration protocols for quantum computing devices. In one example, a system can comprise a process that executes computer executable components stored in memory. The computer executable components can comprise an echo pattern component and a pulse component. The echo pattern component can generate an echo sequence based on a Pauli term. The echo sequence can amplify the Pauli term. The pulse component can generate a pulse sequence to calibrate a multi-qubit gate using the echo sequence.

Abstract: Techniques facilitating hardware-efficient calibration protocols for quantum computing devices. In one example, a system can comprise a process that executes computer executable components stored in memory. The computer executable components can comprise an echo pattern component and a pulse component. The echo pattern component can generate an echo sequence based on a Pauli term. The echo sequence can amplify the Pauli term. The pulse component can generate a pulse sequence to calibrate a multi-qubit gate using the echo sequence.