Generation of field cluster states through collective operation of cavity QED disentanglement eraser R. Ul-Islam, A. H. Khosa, H.-W. Lee and F. Saif Eur. Phys. J. D, 48 2 (2008) 271-277 Published online: 07 May 2008 DOI: 10.1140/epjd/e2008-00095-1