Returns whether the value has a mixture representation.
val: Any, *, allow_decompose: bool = True
) -> bool
Used in the notebooks
The value to check.
Used by internal methods to stop redundant
decompositions from being performed (e.g. there's no need to
decompose an object to check if it is unitary as part of determining
if the object is a quantum channel, when the quantum channel check
will already be doing a more general decomposition check). Defaults
to True. When false, the decomposition strategy for determining
the result is skipped.
val has a
_has_mixture_ method and its result is not
NotImplemented, that result is returned. Otherwise, if the value
_mixture_ method return True if that has a non-default value.
Returns False if neither function exists.