Implementation of cross resonance gate for a capacitively coupled two fluxonium device in 3D cavity

ORAL

Abstract

Fluxonium qubits stand out with their high anharmonicity and longer coherence times [1,2]. For this reason they are promising candidates for cross resonance gate applications where the weak transmon anharmonicity is one of the main limitations [3]. Our work focuses on the implementation of the cross resonance gate on a capacitively coupled two fluxonium system and suggests an 'all microwave' scheme in a simple 3D resonator geometry. We will present our improved toolbox for the realization of the CR gate in our system and report recent benchmarking results. In particular we will discuss observations of the effect of strong drives on fluxonium qubits in a 3D cavity.

[1] L. B. Nguyen, et. al., Phys. Rev. X 9, 041041 (2019)

[2] A. Somoroff, et. al., arXiv: 2103.08578 (2021)

[3] S. Sheldon, et al., Phys. Rev. A 93, 060302 (2016)

*We acknowledge funding from the U.S. Army Research Office (Grant No. W911NF-18-1-0146)

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Presenters

  • Ebru Dogan

    • University of Massachusetts Amherst

Authors

  • Ebru Dogan

    • University of Massachusetts Amherst

  • Dario Rosenstock

    • University of Massachusetts Amherst

  • Loïck Le Guevel

    • University of Massachusetts Amherst

  • Quentin Ficheux

    • University of Maryland, College Park
    • Ecole Normale Supérieure de Lyon

  • Haonan Xiong

    • University of Maryland, College Park

  • Aaron Somoroff

    • University of Maryland, College Park

  • Ray A Mencia

    • University of Maryland, College Park

  • Konstantin Nesterov

    • University of Wisconsin - Madison

  • Maxim G Vavilov

    • University of Wisconsin - Madison
    • UW-Madison

  • Vladimir Manucharyan

    • University of Maryland, College Park

  • Chen Wang

    • University of Massachusetts Amherst