A further curiosity within the field of semiconductor nanostructures is the quantum ring. These structures are not as easily treated due to their photo-and electrophysical complexities , primarily due to the nature of the many-fermion problem . A particularly interesting property of quantum ring systems is their circumvention of the standard relation to temperature. While most all systems in nature, especially typical quantum dot systems , exhibit retardation of their photoluminescence quantum yields, quantum rings have to the contrary been observed to display increased yields . This makes treatment of these and similar quantum species difficult.