Engineering Filters for Reducing Spontaneous Emission in cQED

ORAL

Abstract

Inserting a notch filter between a qubit and the external environment at the qubit frequency can significantly suppress spontaneous emission mediated by the cavity (``Purcell effect''). In order to realize this filtering in multi-qubit architectures, where space comes at a premium, we will present a filter with minimal space requirements.

*We acknowledge support from IARPA under contract W911NF-10-1-0324.

Authors

  • Nicholas Bronn

    • IBM TJ Watson Research Center
  • Nicholas Masluk

    • IBM TJ Watson Research Center
  • Srikanth Srinivasan

    • IBM TJ Watson Research Center
  • Jerry Chow

    • IBM TJ Watson Research Center
  • David Abraham

    • IBM TJ Watson Research Center
  • Mary Rothwell

    • IBM TJ Watson Research Center
  • George Keefe

    • IBM TJ Watson Research Center
  • Jay Gambetta

    • IBM TJ Watson Research Center
  • Matthias Steffen

    • IBM TJ Watson Research Center
  • Chris Lirakis

    • IBM TJ Watson Research Center