Fig. 2: Vacuum Rabi oscillations in a filled cavity.
a Red and black solid lines correspond to damped vacuum Rabi oscillations of the resonant cavity and qubit, respectively, in the absence of any drive. The qubit–cavity Jaynes–Cummings coupling rate \({g}^{{\prime} }\) is set to 100/7 of the cavity decay rate κ. With a cavity drive ϵ1 = 46κ/7 and the cancellation turned on, the cavity field (dashed orange) oscillates on top of ∣αt∣2 (dashed-dotted gray), swapping a single quantum of excitation back and forth with the qubit (dashed light blue). b Computed Wigner distributions of the cavity field at 3/2 and 1 Rabi periods with the drives on, as indicated by the symbols in (a). At 1 Rabi period, the cavity is in a coherent state, while it is in a displaced Fock state at 3/2 Rabi periods.
