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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
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Vol.1 No.3, October 2001 |
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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 |
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