Parallel Treatment of Estimation of SU(2) and Phase Estimation

Details Parallel Treatment of Estimation of SU(2) and Phase Estimation Parallel Treatment of Estimation of SU(2) and Phase Estimation

2004-07-07

arxiv.org/abs/quant-ph/0407053v3

Physics Letters A, Vol. 354, No. 3, 183-189 (2006)

Physics

Quantum Physics

I changed the title

Scientific paper

10.1063/1.1834432

We discuss the accuracy of the estimation of the $n$ identical unknown
actions of $\SU(2)$ by using entanglement. This problem has a similar structure
with the phase estimation problem, which was discussed by Bu\v{z}ek, Derka, and
Massar\cite{BDM}. The estimation error asymptotically decreases to zero with an
order of $\frac{1}{n^2}$ at least.

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