Scheme for n phase gates operation and one-step preparation of highly entangled cluster state K. H. Song, Y. J. Zhao, Z. G. Shi, S. H. Xiang and X. W. Chen Eur. Phys. J. D, 66 1 (2012) 1 Published online: 06 January 2012 DOI: 10.1140/epjd/e2011-10641-3