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High-density cryogenic wiring for superconducting qubits

ORAL

Abstract

As superconducting quantum processors continue to scale up in size, it becomes increasingly challenging to route the required number of control lines through a dilution refrigerator to the qubit chip. In this presentation, we will discuss our efforts to develop high-density fridge wiring for use in next-generation quantum annealers. Our wiring solution is based on flexible multi-channel cables with a stripline geometry, designed to achieve low crosstalk and moderate bandwidth. We will describe the electrical performance of these cables, as well as other design considerations such as thermal management.

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Presenters

  • Steven Weber

    MIT Lincoln Laboratory

Authors

  • Steven Weber

    MIT Lincoln Laboratory

  • John Cummings

    MIT Lincoln Laboratory

  • Jovi Miloshi

    MIT Lincoln Laboratory

  • Kyle J Thompson

    MIT Lincoln Laboratory

  • John Rokosz

    MIT Lincoln Laboratory

  • Andrew James Kerman

    MIT Lincoln Laboratory

  • William Oliver

    Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, Department of Physics, MIT Lincoln Laboratory, Massachusetts Institute of Techn, MIT Lincoln Lab, MIT Lincoln Laboratory, MIT Lincoln Laboratory, Massachusetts Institute of Technology, Department of Physics, Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Lincoln Laboratory, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology MIT, Department of Electrical Engineering and Computer Science, Department of Physics, Massachusetts Institute of Technology; MIT Lincoln Laboratory, Department of Electrical Engineering and Computer Science, Department of Physics, MIT Lincoln Laboratory, Massachusetts Institute of Technology, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology, Research Laboratory of Electronics, Department of Electrical Engineering & Computer Science, Department of Physics, Massachusetts Institute of Technology and MIT Lincoln Labo, Physics, MIT, MIT-Lincoln Lab, MIT Lincoln Laboratories, Research Laboratory of Electronics, Department of Physics, Department of Electrical Engineering and Computer Science, Lincoln Laboratory, Massachusetts Institute of Technolog