qrisp.operators.qubit.QubitOperator.to_sparse_matrix#

QubitOperator.to_sparse_matrix(factor_amount=None)[source]#

Returns a scipy matrix representing the operator

$$O=\sum _i{\alpha }_i\underset{j=0}{\overset{n-1}{⨂}}{O}_{ij}$$

where $O_{ij}\in \{X,Y,Z,A,C,P_0,P_1,I\}$.

Parameters:

factor_amountint, optional

The amount of factors $n$ to represent this matrix. The matrix will have the dimension $2^n\times 2^n$, where n is the amount of factors. By default the minimal number $n$ is chosen.

Returns:

scipy.sparse.csr_matrix

The sparse matrix representing the operator.