Resonance fluorescence of N entangled atoms in a strong driving field

In the limit of a strong driving field, the resonance fluorescence of N two -level atoms initially in the various maximum-entangled states with the sam e average excited-atom number is investigated. We find that the steady-stat e fluorescent integrated intensity on resonance is proportional to [(N - 2m )(2) + 2N]/4 (N > 2), which will become smaller as m increases. In particul ar, the cases for two, three and four two-level maximum-entangled atoms are discussed, respectively. (C) 1999 Elsevier Science B.V. All rights reserve d.