Squeezing and Entanglement of two-modes Quantum $\mathrm{X}$ Waves

Ali Saif M. Hassan, Waleed S. A. Hasan, M. A. Shukri

quantum theory of generalized $\mathrm{X}$ waves with orbital angular momentum in dispersive media, and the interaction of quantized $\mathrm{X}$ waves in quadratic nonlinear media…