qit.utils.rmul

qit.utils.rmul(R, p=None)

Superoperator equivalent for multiplying from the right.

$$\rho R=\text{inv\_vec}(\text{rmul}(R)\text{vec}(\rho ))$$

Parameters

• R (array) – multiplying operator, shape == (q, r)

• p (int) – The shape of $\rho$ is (p, q). If p is not given, $\rho$ is assumed square.

Returns

superoperator that implements right multiplication of a vectorized matrix $\rho$ by the matrix R

Return type

array