The significant influence of the counter rotating terms on the squeezing in the Jaynes–Cummings model is demonstrated. Numerical results for the time evolution of the atomic population inversion, and atomic and field squeezing parameters for initially coherent and squeezed fields are presented.
The influence of the counter-rotating terms in the polyatomic Jaynes-Cummings model with cavity losses is investigated. Numerical results for the time evolution of the atomic population inversion, dipole moment, mean-photon number and atomic and field squeezing parameters for an initial coherent field are presented for different cavity dampings. As a consequence of the counter-rotating terms, the appearance of new steady states for the population inversion and the mean-photon number is pointed out.
durch das w. M. Otto Hittmair) The effect of the counter-rotating terms in the few-atom Jaynes-Cummings model is examined in both lossless cavities and cavities with losses. Numerical results for the time evolutions of the atomic populations inversion and dipole moment for an initial coherent field are presented for various numbers of atoms. As a consequence of the counter-rotating terms, the appearance of new steady states for atomic population inversion in the case of cavities with losses is pointed out.
Dynamical evolution of atomic squeezing is studied in a generalized multiphoton Jaynes–Cummings model. The influence of some nonlinear interactions and the counter-rotating wave term on the squeezing is discussed in detail. These nonlinear interactions influence the squeeze duration and its revival period. In a multiphoton transition, switching on the counter-rotating wave term has a much more destructive effect on the squeezing, but this destructive effect is weakened due to the presence of a nonlinear Kerr-like medium.