Jonathan Keeling

Collective Suppression of Linewidths in Circuit QED

  1. Felix Nissen,
  2. Johannes M. Fink,
  3. Jonas A. Mlynek,
  4. Andreas Wallraff,
  5. and Jonathan Keeling
We report the experimental observation, and a theoretical explanation, of collective suppression of linewidths for multiple superconducting qubits coupled to a good cavity. This demonstrates
how strong qubit-cavity coupling can significantly modify the dephasing and dissipation processes that might be expected for individual qubits, and can potentially improve coherence times in many-body circuit QED.
arxiv pdf