Multi-Particle Interferometry Based on Double Entangled States
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Todd B. Pittman et al., Multi-Particle Interferometry Based on Double Entangled States, https://ntrs.nasa.gov/search.jsp?R=19960025010
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This is a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract
A method for producing a 4-photon entangled state based on the use of two independent pair sources is discussed. Of particular interest is that each of the pair sources produces a two-photon state which is simultaneously entangled in both polarization and space-time variables. Performing certain measurements which exploit this double entanglement provides an opportunity for verifying the recent demonstration of nonlocality by Greenberger, Horne, and Zeilinger.