TY - CHAP AU - Gress, Zulema AU - Cruz y Cruz, Sara PY - 2019 UR - http://uvadoc.uva.es/handle/10324/40292 AB - Ladder and shift operators are determined for the set of Hermite–Gaussian modes associated with an optical medium with quadratic refractive index profile. These operators allow to establish irreducible representations of the su(1, 1) and su(2)... LA - eng PB - Springer KW - Hermite–Gaussian modes, Ladder operators, Coherent states, Self-focusing media, Paraxial beams, Ermakov equation TI - Hermite Coherent States for Quadratic Refractive Index Optical Media ER -