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 using two fixed frequency qubits, we replaced one of them to a tunable-frequency qubit in order to align the higher energy levels 03 and 12 in situ. By doing so, the ideal condition for implementing and optimizing MAP gate can be reached, where we explored the shortest possible 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.