The (over)completeness of even and odd nonlinear charge coherent states is proved and their generation explored. They are demonstrated to be generalized entangled nonlinear coherent states.A D-algebra realization of the SU f (1,1) generators is given in terms of them. They are shown to exhibit SU f (1,1) squeezing and twomode f -antibunching for some particular types of f -nonlinearity, but neither one-mode nor two-mode f -squeezing.
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