Effects of photon statistics in wave mixing on a single qubit

We theoretically consider wave mixing under the irradiation of a single qubit by two photon fields. The first signal is a classical monochromatic drive, while the second one is a nonclassical light. Particularly, we address two examples of a nonclassical light: (i) a broadband squeezed light and (ii) a periodically excited quantum superposition of Fock states with 0 and 1 photons. The mixing of classical and nonclassical photon fields gives rise to side peaks due to the elastic multiphoton scattering. We show that a side peaks structure is distinct from the situation when two classical fields are mixed. The most striking feature is that some peaks are absent. The analysis of peak amplitudes can be used to probe photon statistics in the nonclassical mode.

Automated summary

Theoretical analysis of wave mixing under the irradiation of a single qubit by two photon fields is presented in this study. When classical and nonclassical photon fields are mixed, side peaks due to elastic multiphoton scattering arise, with some peaks being absent. The analysis of peak amplitudes can provide insights into probing photon statistics in the nonclassical mode.