Demonstration of Rubidium-Cesium entanglement for fast syndrome measurements

ORAL

Abstract

Inter-species Rydberg entangling gates enable fast error syndrome measurements for quantum error correction in a neutral atom quantum computer. We assign Rb to the role of ancilla, and Cs to the role of data qubit, thereby allowing the ancillas to be read out in-place with zero crosstalk to the data qubits. This scheme eliminates the need for time-consuming atom motion or shelving. We will present characterization of inter-species entanglement with time-optimal CZ gates on Infleqtion's Sqale Error Correction Testbed. We will also discuss performance optimization including Rydberg level selection and electric field control.

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Presenters

  • Jared Miles

    • Infleqtion, Inc.

Authors

  • Martin Lichtman

    • Infleqtion, Inc.

  • Jared Miles

    • Infleqtion, Inc.

  • Abraham Scott

    • Infleqtion, Inc.

  • Nathan Neff-Mallon

    • Infleqtion, Inc.

  • Mark Saffman

    • University of Wisconsin - Madison/Infleqtion
    • Department of Physics, University of Wisconsin - Madison and Infleqtion, Inc.
    • University of Wisconsin - Madison
    • University of Wisconsin - Madison/Infleqtion, Inc.
    • University of Wisconsin - Madison and Infleqtion, Inc.