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arXiv · 0907.4201

Phase gate of one superconducting qubit simultaneously controlling n qubits in a cavity

Chui-Ping Yang·Yu-xi Liu·Franco Nori
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Abstract

We propose how to realize a three-step controlled-phase gate of one superconducting qubit simultaneously controlling n qubits selected from N qubits in a cavity (1<n<N). The operation time of this gate is independent of the number n of qubits involved in the gate operation. This phase gate controlling at once n qubits is insensitive to the initial state of the cavity mode and can be used to produce an analogous CNOT gate simultaneously acting on n qubits.

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Chui-Ping Yang, Yu-xi Liu, Franco Nori. 2013-03-18. Phase gate of one superconducting qubit simultaneously controlling n qubits in a cavity. https://doi.org/10.1103/physreva.81.062323

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