Dispersive Jaynes-Cummings Hamiltonian describing a two-level atom interacting with a two-level single mode field

Abstract

We investigate the time evolution of statistical properties of a single mode radiation field after its interaction with a two-level atom. The entire system is described by a dispersive Jaynes-Cummings Hamiltonian assuming the atomic state evolving from an initial superposition of its excited and ground states, $|e⟩+|g⟩,$ and the field evolving from an initial superposition of two excited levels, $|n_1⟩+|n_2⟩$. It is found that the field evolution is periodic, the period depending on the ratio $n_2/n_1.$ The energy excitation oscillates between these two states and the statististics can be either sub- or super-Poissonian, depending on the values $n_1,$ $n_2$.

5 pages, 3 figures

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