%0 Journal Article %T Simple pulse sequence for quantum logic operations using photon-exchange interactions %A J. D. Franson %A T. B. Pittman %A J. P. Dowling %J Physics %D 1999 %I arXiv %X This paper has been withdrawn by the authors due to an error first noted by M. Lukin. %U http://arxiv.org/abs/quant-ph/9912121v4