Photon statistics and quantum field entropy in the anti-jaynes-cummings model: a comparison with the jaynes-cummings interaction

Abstract

We apply the Wigner-Yanase skew information, I(ρ, K), as a quantum information quantifier of atomic non-classicality in the dynamics generated by the anti-Jaynes-Cummings (AJC) Hamiltonian when a two-level atom in an initial atomic ground state | g⟩ couples to a single mode of squeezed coherent light. We investigate the effect of variation of squeeze parameter, r, field intensity, | α | 2 , and coupling strength parameter, ξ, on the dynamics of, I(ρ, K). We observe that, I(ρ, K) records mixed state values for all variations of r, | α | 2 , ξ congruent with squeezing effects.

Dissipation-Induced Photon Blockade in the Anti-Jaynes–Cummings Model

“…Considering the interactions between a system and its environment, the average number of photons in a cavity increases gradually, which leads to super-Poissonian quantum statistics of the field [50]. However, for a special initial state, the anti-JC model exhibits the photon antibunching effect, eliminating atomic decay and cavity leakage [51]. From an application perspective, cavity decays must be considered to enable the emission of intracavity photons for the development of a genuine single-photon source based on the anti-JC model.…”