Spin flips and quantum information for anti-parallel spins
Quantum Physics
2013-01-22 v1
Abstract
We consider two different ways to encode quantum information, by parallel or anti-parallel pairs of spins. We find that there is more information in the anti-parallel ones. This purely quantum mechanical effect is due to entanglement, not of the states but occuring in the course of the measuring process. We also introduce a range of quantum information processing machines, such as spin-flip and anti-cloning.
Cite
@article{arxiv.quant-ph/9901072,
title = {Spin flips and quantum information for anti-parallel spins},
author = {N. Gisin and S. Popescu},
journal= {arXiv preprint arXiv:quant-ph/9901072},
year = {2013}
}