Comment on ``One-Step Synthesis of Multiatom Greenberger-Horne-Zeilinger States'' [Shi-Biao Zheng, Phys. Rev. Lett. 87, 230404 (2001)]
We point out the relation between the work of Zheng and ours, APS [G.S. Agarwal, R.R. Puri, and R.P. Singh, Phys. Rev. A 56, 2249 (2001)] and show the important connection between the atomic cat state and the GHZ states.