GENERALIZED Q-BOSONS AND THEIR SQUEEZED STATES

Generalized q-boson operators associated with the simultaneous creation of several q-bosons are introduced. These operators give rise to a realization of the quantum Heisenberg-Weyl algebra and are applied to the construction of corresponding Holstein-Primakoff realizations of the quantum algebras SU(q)(2) and SU(q)(1,1). Coherent states of these algebras are defined in the various ways suggested by the equivalent definitions of the harmonic oscillator coherent states, and some of their properties are studied. Particular attention is devoted to the squeezing properties of the quadratures of the electromagnetic field in these states.