Dressed collective qubit states and the Tavis-Cummings model in circuit QED.
We present an ideal realization of the Tavis-Cummings model in the absence of atom number and coupling fluctuations by embedding a discrete number of fully controllable superconducting qubits at fixed positions into a transmission line resonator. Measuring the vacuum Rabi mode splitting with one, two, and three qubits strongly coupled to the cavity field, we explore both bright and dark dressed collective multiqubit states and observe the discrete square root N scaling of the collective dipol...Expand abstract
- Publication status:
- Publisher copy:
- Copyright date:
revised version: corrected typos, added references; 5 pages, 5
figures, version with high resolution figures available at