Fig. 5
From: Quantum wave mixing and visualisation of coherent and superposed photonic states in a waveguide
Different regimes of mixing and dynamics of photonic states. a Anharmonic Rabi oscillations in classical wave mixing on a single artificial atom. b Quantum wave mixing with a two-level atom. The single ‘emission’ side peak appears. c Quantum wave mixing on a three-level atom. Two more side peaks at 3ω + − 2ω − and 2ω − − ω + appear because the two-photon field is stored in the atom at ω −
