Currently, we do not support HilbertSpace instance that is generated within the Circuit module (HilbertSpace instance made of Subsystem instances). The reason is that proper parameter changing/sweeping for such systems requires accessing to the Circuit instance (i.e. the parent of the subsystems).
Within QFit, we actually face ambiguities in dealing with such HilbertSpace object: in principle, we can tune the attributes in each subsystems individually, or access to their parent and tune the parameters there. The enhancement is to perform the latter.
Currently, we do not support HilbertSpace instance that is generated within the Circuit module (HilbertSpace instance made of Subsystem instances). The reason is that proper parameter changing/sweeping for such systems requires accessing to the Circuit instance (i.e. the parent of the subsystems).
Within QFit, we actually face ambiguities in dealing with such HilbertSpace object: in principle, we can tune the attributes in each subsystems individually, or access to their parent and tune the parameters there. The enhancement is to perform the latter.