Franson, J.D.Pittman, T.B.2020-08-072020-08-072000-05J. D. Franson and T. B. Pittman, "Quantum logic using photon-exchange interactions," in Quantum Electronics and Laser Science Conference, T. Gallagher, H. Van Driel, H. Gibbs, and D. Wineland, eds., OSA Technical Digest (Optical Society of America, 2000), paper QThN6., https://www.osapublishing.org/abstract.cfm?uri=QELS-2000-QThN6http://hdl.handle.net/11603/19377Quantum Electronics and Laser Science Conference 2000, San Francisco, California United States, 7–11 May 2000Nonlinear optical effects at the two-photon level are usually negligible because of the weak electric field associated with a single photon.1 pageen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Text