Resonant interaction of monochromatic wave with atomic (molecular) quantum transition

Aleksandr A. Makarov, Victor T. Platonenko, V. V. Tyakht

Ashat M. Basharov

Two-quantum relaxation transitions in an impurity atom that are activated by its resonance interaction with a monochromatic wave lead to hole burning in the distribution of atoms populating the lower energy level over detunings from the resonance. In this case, the levels of an impurity atom lying within the gap or the pseudogap in the density of photon states of a photonic crystal act as a trap. The impurity atoms change to these levels in the process of interaction of a monochromatic wave with the atomic transition that is not influenced by specific spectral features of a photonic crystal.

A. A. Panteleev

A theory describing the absorption and emission spectra of an atomic transition in the field of an intense monochromatic wave with arbitrary polarization composition is developed. The theory includes a quantum description of forward-directed four-wave interaction processes. Expressions are obtained for describing the absorption and emission spectra in transitions adjacent to the working transition. The description developed includes the perturbation of the atomic subsystem by a constant magnetic field. The spectral characteristics, polarization composition, and angular distribution of the resonance fluorescence are investigated. The nonlinear Faraday effect and the properties of resonance fluorescence are investigated for the transition J =1→ J =0.

智 藤井, 敏雄 伊東

Leo Radzihovsky, Sungsoo Choi

We show that a degenerate gas of two-species bosonic atoms interacting through a p-wave Feshbach resonance (as realized in, e.g., a (85)Rb -- (87)Rb mixture) exhibits a finite-momentum atomic-molecular superfluid (AMSF), sandwiched by a molecular p-wave (orbital spinor) superfluid and by an s-wave atomic superfluid at large negative and positive detunings, respectively. The magnetic field can be used to tune the modulation wave vector of the AMSF state, as well as to drive quantum phase transitions in this rich system.

A. Ya. Izmailov