High frequency microwave packaging for Josephson traveling wave parametric amplifiers

ORAL

Abstract

The detection of single-photon microwave signals above 12 GHz is of significant interest for quantum sensing applications in neutrino mass measurement, dark matter searches, and quantum information processing. Below 12 GHz, quantum-limited amplification can be achieved with high-gain, broadband, and low-noise Josephson traveling wave parametric amplifiers (JTWPAs). However, standard microwave packaging for JTWPAs introduce package modes above 12 GHz, as well as impedance mismatches at the connectors and wirebonding locations that hinder the performance of JTWPAs. Here we present an approach to high frequency microwave package design that optimizes package and connector modes, minimizes wirebonds on interposer chips, and employs signal-line compensation strategies for better impedance matching throughout. The package is modular, easily prototyped, and well-matched up to 27 GHz. This package will be deployed with a K band JTWPA tailored to the Project 8 neutrino mass measurement experiment, which will enable the detection of cyclotron radiation from single electrons with a signal-to-noise ratio improvement of an order of magnitude compared to current HEMT amplifiers. Since this design features low reflection and minimal spurious modes over a broad range of frequencies, this package can also be tailored to suit a wide range of superconducting quantum devices.

* This work is supported by the NSF Graduate Research Fellowship, the US DOE Office of Nuclear Physics (DE-FOA-0002110), the US NSF, the PRISMA+ Cluster of Excellence at the University of Mainz, and internal investments at all institutions. This material is based upon work supported under Air Force Contract No. FA8702-15-D-0001. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the U.S. Air Force.

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Presenters

  • Jennifer Wang

    Massachusetts Institute of Technology MIT

Authors

  • Jennifer Wang

    Massachusetts Institute of Technology MIT

  • Alec Yen

    Massachusetts Institute of Technology MIT

  • Gregory Cunningham

    Massachusetts Institute of Technology MI, Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology, Harvard University, Massachusetts Institute of Technology (MIT)

  • Wouter Van De Pontseele

    Massachussets Institute of Technology

  • Katrina Silwa

    MIT Lincoln Laboatory

  • Patrick M Harrington

    Massachusetts Institute of Technology MI, Massachusetts Institute of Technology, Massachusetts Institute of Technology (MIT), Massachusetts Institute of Technology MIT

  • Yanjie Qiu

    Massachusetts Institute of Technology MIT

  • Kyle Serniak

    MIT Lincoln Laboratory & MIT RLE, MIT Lincoln Laboratory, MIT Lincoln Laboratory, MIT RLE

  • Mollie E Schwartz

    MIT Lincoln Laboratory

  • Joseph A Formaggio

    Massachusetts Institute of Technology MIT

  • William D Oliver

    Massachusetts Institute of Technology MI, Massachusetts Institute of Technology, Massachusetts Institute of Technology (MIT), Massachusetts Institute of Technology MIT

  • Kevin P O'Brien

    Massachusetts Institute of Technology MI, Massachusetts Institute of Technology MIT