Observation of microsecond lived quantum states in carbon-based circuits

ORAL

Abstract

We manipulate the quantum state of a carbon nanotube double quantum dot with ferromagnetic contacts embedded in a microwave cavity. By performing quantum manipulations such as Rabi oscillations, Ramsey fringes and spin echoes, we demonstrate coherence times of the order of 1 μs, 2 orders of magnitude larger that what has been measured so far in any carbon quantum circuit and 1 order of magnitude larger than Si based quantum dots in comparable environment. This hold promises for pure isotopically purified 12C spin quantum bits in circuit quantum electrodynamics.

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Presenters

  • Benoît Neukelmance

    • C12 Quantum Electronics - LPENS

Authors

  • Benoît Neukelmance

    • C12 Quantum Electronics - LPENS

  • Benjamin Hue

    • C12 Quantum Electronics - LPENS

  • Lucas Jarjat

    • LPENS

  • Arnaud Thery

    • LPENS

  • William Legrand

    • ETH Zurich

  • Jules Craquelin

    • LPENS

  • Tino Cubaynes

    • KIT

  • Gulibusitan Abulizi

    • C12 Quantum Electronics

  • Jeanne Becdelievre

    • C12 Quantum Electronics

  • Maria El Abassi

    • C12 Quantum Electronics

  • Quentin Schaeverbeke

    • C12 Quantum Electronics

  • Audrey Cottet

    • LPENS - LPEM

  • Matthieu Desjardins

    • C12 Quantum Electronics

  • Matthieu Delbecq

    • LPENS - LPEM

  • Takis Kontos

    • LPENS - LPEM