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1.7 KiB
1.7 KiB
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Operazione tra due matrice che risulta in una matrice più grande:
\Huge \otimes
Si calcola nel seguente modo:
\begin{bmatrix}
{\color{navy} 0} & {\color{blue} 1} \
{\color{dodgerblue} 2} & {\color{deepskyblue} 3} \
\end{bmatrix}
\otimes
\begin{bmatrix}
{\color{darkred} 4} & {\color{red} 5}\
{\color{firebrick} 6} & {\color{indianred} 7}
\end{bmatrix}
\begin{bmatrix} {\color{navy} 0} \cdot {\color{darkred} 4} & {\color{blue} 1} \cdot {\color{darkred} 4} & {\color{navy} 0} \cdot {\color{red} 5} & {\color{blue} 1} \cdot {\color{red} 5} \ {\color{dodgerblue} 2} \cdot {\color{darkred} 4} & {\color{deepskyblue} 3} \cdot {\color{darkred} 4} & {\color{dodgerblue} 2} \cdot {\color{red} 5} & {\color{deepskyblue} 3} \cdot {\color{red} 5} \ {\color{navy} 0} \cdot {\color{firebrick} 6} & {\color{blue} 1} \cdot {\color{firebrick} 6} & {\color{navy} 0} \cdot {\color{indianred} 7} & {\color{blue} 1} \cdot {\color{indianred} 7} \ {\color{dodgerblue} 2} \cdot {\color{firebrick} 6} & {\color{deepskyblue} 3} \cdot {\color{firebrick} 6} & {\color{dodgerblue} 2} \cdot {\color{indianred} 7} & {\color{deepskyblue} 3} \cdot {\color{indianred} 7} \ \end{bmatrix}
\begin{bmatrix}
0 & 4 & 0 & 5 \
8 & 12 & 10 & 15 \
0 & 6 & 0 & 7 \
12 & 18 & 14 & 21
\end{bmatrix}
Rappresenta la combinazione di due o più qbit.
\ket{0} \otimes \ket{1}
\ket{01}
\begin{bmatrix} 1 \ 0 \end{bmatrix} \otimes \begin{bmatrix} 0 \ 1 \end{bmatrix}
\begin{bmatrix} 0 \cdot 0 \ 1 \cdot 1 \ 0 \cdot 1 \ 0 \cdot 1 \end{bmatrix}
\begin{bmatrix}
0 \ 1 \ 0 \ 0
\end{bmatrix}