Holstein-Primakoff SU(1,1) coherent state in micro maser under intensity-dependent Jaynes-Cummings interaction

It is found that the Holstein-Primakoff SU(1,1) coherent state of the cavity field can be generated in a loss less micro maser under the weak Jaynes-Cummings interaction with intensity-dependent coupling of large number of individually injected polarized atoms. In last few years the production and detection of nonclassical states in the micro maser cavity have attracted a great deal of attention. There are several schemes that have been proposed to produce number states and the possibility of generating coherent states and so-called tangent and cotangent states has also been predicted by using micro masers in which a quantized field is in a high-Q cavity with injected two-level atoms. Since the work of Kien, Scully and Walther on the generation of coherent states, several generalizations have been suggested by present authors. In particular, by paying attention to multiphoton transition in two-level atoms, there can be produced displacement, squeezing of arbitrary excitations. Although foregoing problems have been discussed by utilizing Jaynes-Cummings interaction, one can consider the intensity-dependent Jaynes-Cummings interaction which can provide the Holstein-Primakoff SU(1,1) coherent state