Study of microwave-activated c-Phase (MAP) gate in two transmon qubit system

Abstract

We have studied two qubit MAP (microwave-activated c-Phase) gate demonstrated earlier by J. Chow et al.[1] in our 3D transmon qubit system. Instead of choosing two fixed-transition frequency qubits, we replaced one of them to a tunable-frequency qubit in order to precisely align the higher energy levels 03 and 12 in situ. This experimental set up led us to realize the ideal condition for implementing and optimizing MAP gate, where we explored the shortest gate time in this scheme. We will present the estimation of the fidelity of Bell states generated by MAP gate with tomographic reconstruction of the two-qubit states.