Shadow Evaporated Josephson Junctions for superconducting qubits

ORAL

Abstract

Superconducting circuits are a promising system for the implementation of quantum computing. At present two-level system defects in junctions create a formidable obstacle for superconducting qubits. As shown previously, juctions of reduced size have fewer defects. Making high quality utra-small Josephson junctions is crucial for futher progress. In this talk we will discuss how we define and assess the quality of our shadow evaporated Josephson junctions.

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Authors

  • Fabio Altomare

    • Physics Department, Purdue University, W. Lafayette, IN 47906, and Department of Physics, Duke University, Durham, NC 27708
    • National Institute of Standards and Technology, 325 Broadway, Boulder CO 80305.

  • Jos\'{e} Aumentado

    • National Institute of Standards and Technology, 325 Broadway, Boulder CO 80305.

  • Kevin Osborn

    • National Institute of Standards and Technology, 325 Broadway, Boulder CO 80305.

  • Joshua Strong

    • National Institute of Standards and Technology, 325 Broadway, Boulder CO 80305.

  • Raymond Simmonds

    • National Institute of Standards and Technology, 325 Broadway, Boulder CO 80305.