PHASE-COHERENT STATES AND THEIR SQUEEZING PROPERTIES

Phase-coherent states associated with the Pegg-Barnett (PB) phase oper ator formalism are introduced in terms of the algebraic properties of the PB phase theory. The phase-coherent-state representation of the PB phase states and the PB phase operators is obtained. Squeezing proper ties of these coherent states with respect to the phase quadrature ope rators are studied. The number-phase squeezing and number-phase uncert ainty relations are also investigated in detail for a two-state system . Some new number-phase minimum uncertainty states are found.