Boundary conditions effect on states and transitions in a quantum-well — nanobridge — quantum dot structure

We consider a varied-dimension InGaAs/GaAs structure of quantum well — nanobridge (NB) — quantum dot embedded in a "virtual" cylinder Ω. Electron and hole eigenstates are computed for the whole system using the finite volume method and effective mass approximation. Hybrid states and significant oscillator strength changes appear in the combined system at small values of the NB length under the Dirichlet boundary conditions imposed on the boundaries of Ω.