Research ArticlePHYSICS

Superadiabatic population transfer in a three-level superconducting circuit

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Science Advances  08 Feb 2019:
Vol. 5, no. 2, eaau5999
DOI: 10.1126/sciadv.aau5999

Abstract

Adiabatic manipulation of the quantum state is an essential tool in modern quantum information processing. Here, we demonstrate the speedup of the adiabatic population transfer in a three-level superconducting transmon circuit by suppressing the spurious nonadiabatic excitations with an additional two-photon microwave pulse. We apply this superadiabatic method to the stimulated Raman adiabatic passage, realizing fast and robust population transfer from the ground state to the second excited state of the quantum circuit.

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