Materials Effects in 3D-Cavity Transmon Qubits

ORAL

Abstract

Recent experiments have demonstrated significant increases in the coherence of superconducting transmon qubits coupled to three-dimensional microwave cavities. We are investigating the effects of different materials for forming such cavities, as well as various surface treatments of the cavity walls, including electropolishing and electroplating. In addition, we are exploring the influence of the superconducting material that forms the qubit capacitor along with the material that forms the substrate on which the qubit is fabricated.

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Authors

  • Daniela F. Bogorin

    Syracuse University, Syracuse University, Physics Department

  • Matthew Ware

    Syracuse University, Syracuse University, Physics Department

  • Stephen Sorokanich

    Syracuse University, Physics Department

  • Britton Plourde

    Syracuse University, Syracuse University, Physics Department