Higher-order nonclassicality in superposition of three-mode photon-added trio coherent states

In this paper, we study some higher-order nonclassical properties of the superposition of three-mode photon-added trio coherent states such as antibunching, squeezing, and entanglement. The results show that, for a fixed order, when the number of added photons is increased, the three-mode sum squeezing is more obvious, but the degrees of antibunching and three-mode entanglement are less manifested.