US Patent 7,667,995
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US) ; The Regents of the University of California (Oakland, CA, US)
A method for creating a logic state for teleporting quantum information using a single photon is described. The method includes receiving a photon with an initial polarization and causing a first semiconductor crystal to have a first spin orientation. The photon interacts with the first semiconductor crystal for producing a resulting polarization dependent upon the first spin orientation. Causing the photon to interact with the first semiconductor crystal generates a maximally entangled state.
Leuenberger, Michael N.; Flatté, Michael E.; and Awschalom, David D. Teleportation system for electronic many-qubit states using individual photons. US Patent 7,667,995 filed February 09, 2006 and issued February 23, 2010. https://ir.uiowa.edu/patents/496