Collective suppression of linewidths in circuit QED
Felix Nissen, Johannes M. Fink, Jonas A. Mlynek, Andreas Wallraff, and Jonathan Keeling
Accepted
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.