For two identical particles entangled in n two-state variables, we show that, of the 4n hyper-entangled Bell states, 2n+1-1 can be distinguished using linear evolution and local measurement. Our result generalizes previous results for n=1,2.
© 2011 OSA
N. Pisenti, C. P. Gaebler, and T. Lynn, "Distinguishability of Hyper-Entangled Bell States by Linear Evolution and Local Measurement," in International Conference on Quantum Information, OSA Technical Digest (CD) (Optical Society of America, 2011), paper QMI25.
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