Two-mode nonclassical state via superpositions of two-mode coherent states
Chin-lin Chai · Physical Review A · 1992
The superposition states from several two-mode coherent states are studied. It is shown that under certain conditions the superposition states may exhibit nonclassical effects, such as two-mode squeezing, violation of the Cauchy-Schwartz inequality, and sub-Poissonian statistics.