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Optimal
quantum measurements for spin-1 and spin-3/2 particles(pp52-61)
P.K. Aravind
doi:
https://doi.org/10.26421/QIC1.3-4
Abstracts:
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. Key words:
Abelian groups, quantum algorithm