  We calculate the intensity-field correlations in the light scattered by N
cold atoms driven by a quasi-resonant laser field. Fundamental differences
occur if the atomic state is an entangled single-excitation state or a coherent
factorized state. We provide analytic expressions for the two-time field and
intensity correlation functions for the timed Dicke state and the quasi-Bloch
state. The comparison with multi-atom simulations shows good agreement between
numerical and analytic solutions.
