Electromagnetic Interaction of Atoms

Carson L. Tang

Umberto Lucia, Giulia Grisolia

In the environment there exists a continuous interaction between electromagnetic radiation and matter. So, atoms continuously interact with the photons of the environmental electromagnetic fields. This electromagnetic interaction is a consequence of thermal non-equilibrium. It introduces an element of randomness into atomic and molecular motion, which leads to the decrease of the path probability required for the microscopic reversibility of evolution. Recently, an energy footprint has been theoretically proven in the atomic electron-photon interaction, as well as the well known spectroscopic phase shift effect and the results on the irreversibility of the electromagnetic interaction with atoms and molecules, experimentally obtained by R.O. Doyle in 1968. Here, we want to show that such a quantum footprint is nothing more than the generation of time.

Igor I Sobel'man

Hualong Zhang

The system of an atom interacting with an electromagnetic filed is very complicated.In this paper,we studied the system of a two-level atom interacting with a linear harmonic electromagnetic field,and worked out the wave function,the energy values and the center-of-mass momentum values of the atom.

K. T. Hecht

Alfred M. Levine, W. M. Schreiber, Andrei N. Weiszmann

The solution of the time-dependent Hamiltonian for the semiclassical dipole interaction of a multilevel atom with monochromatic electromagnetic fields is presented. Characteristics of the eigenvalue equation are investigated. Results are presented for the interaction of unequally spaced multilevel atoms with multiple monochromatic electromagnetic fields. The connection with the quantized-field method is discussed. Complications due to atomic decay are included only in the final discussion.