scqubits.core.operators.iadag_minus_ia_sparse¶

scqubits.core.operators.iadag_minus_ia_sparse(dimension, prefactor=None)[source]¶

Operator matrix for prefactor(ia-ia^dag) of size dimension x dimension as ndarray

Parameters:

dimension (int) – matrix size
prefactor (Union[float, complex, None]) – prefactor multiplying the number operator matrix (if not given, this defaults to 1)

Return type:

csc_matrix

Returns:

prefactor (ia - ia^dag) as sparse operator matrix, size dimension x dimension