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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)

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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