An effective method for computing excitonic shifts in curved quantum-wire geometries is presented. As a case example, we consider a GaAs quantum ring with infinite barriers along the cross-sectional dimensions assumed to be of square shape albeit this assumption can be easily avoided. A simple analytic expression for excitonic shifts is found using first-order perturbation theory.
|Conference||29th International Conference on the Physics of Semiconductors|
|City||Rio de Janeiro|
|Period||27/07/2008 → 01/08/2008|
|Series||Aip Conference Proceedings|
- Quantum-dot rings
- Differential geometry