I give a simple argument that demonstrates that the state |0>|1>+|1>|0>, with |0> denoting a state with 0 particles and |1> a 1-particle state, is entangled in spite of recent claims to the contrary. I also discuss new viewpoints on the old controversy about whether the above state can be said to display single-particle or single-photon nonlocality.
Cite
@article{arxiv.quant-ph/0507189,
title = {|0>|1>+|1>|0>},
author = {S. J. van Enk},
journal= {arXiv preprint arXiv:quant-ph/0507189},
year = {2015}
}
Comments
A more serious version, almost 2.36 pages, but still an unnormalized title