Scalable Generation and Characterization of a Four-Photon Twelve-Qubit Hyperentangled State
arXiv:1108.1475 · doi:10.1080/09500340.2011.647102
Abstract
An experimentally feasible scheme for generating a 12-qubit hyperentangled state via four photons, entangled in polarization, frequency and spatial mode, is proposed. We study the nature of quantum non-locality of this hyperentangled state by evaluating its violation degree to a Bell-type inequality, and find that the result agrees well with quantum mechanics prediction while extremely contradicts to the local realism constraint.
14 pages, 6 Postscript figures