On a sequential measurement of M-ary orthogonal quantum signal. Approach to implementing an optimum receiver
Masashi Kato, K. Yamazaki · 2002
We clarify whether the sequential measurement can attain the minimum error probability obtained by combined measurement for an M-ary orthogonal quantum signal. As the results, we show that the sequential measurement can attain the minimum error probability only for binary orthogonal signal but can not for more than a ternary one.