Optimal quantum measurements for spin-1 and spin-3/2 particles
Quantum Physics
2007-05-23 v2
Abstract
Positive operator valued measures (POVMs) are presented that allow an unknown pure state of a spin-1 particle to be determined with optimal fidelity when 2 to 5 copies of that state are available. Optimal POVMs are also presented for a spin-3/2 particle when 2 or 3 copies of the unknown state are available. Although these POVMs are optimal they are not always minimal, indicating that there is room for improvement.
Cite
@article{arxiv.quant-ph/0105037,
title = {Optimal quantum measurements for spin-1 and spin-3/2 particles},
author = {P. K. Aravind},
journal= {arXiv preprint arXiv:quant-ph/0105037},
year = {2007}
}
Comments
12 pages, 3 figures. Some small slips have been corrected and some new references added