Transfer of correlations from squeezed states of radiation to atoms in a generalized Jaynes-Cummings model
Donita Cohen, Y. Ben-Aryeh, Adrian B. Mann · Physical Review A · 1994
The correlations between two atoms in a generalized two-mode Jaynes-Cummings model (JCM), in the presence of a two-mode squeezed state, are studied. It is found that for a small amount of initial squeezing the correlations go back and forth between the radiation and the atoms. For large initial squeezing the atoms are found to be highly correlated at all times, while the squeezing of the radiation is destroyed as a function of time. In addition, the squeezing of the field is studied in the two-mode JCM and is compared to the one-mode squeezing that is obtained for the ordinary JCM. It is found that in the two-mode model the squeezing is preserved for longer times under the condition that ${\mathit{g}}_{1}$ and ${\mathit{g}}_{2}$ (the two coupling constants) are almost equal.