Inverse parabolic quantum dot: The transition energy under magnetic field effect

• Evolution of the transition energy with a static magnetic field in inverse parabolic quantum dot (IPQD).
• The conduction band minimum and the top of valance band change from s-state to p-state or d-state for the electron and hole inside IPQD.
• The strength of the inverse parabolic potential (potential hump) is tuning the ground state momentum and the transition energy.

We present here, the evolution of the transition energy with a static magnetic field, when the electron and the hole are confined in inverse parabolic quantum dot (IPQD). The unexpected behavior is found, at the weak confinement regime the conduction band minimum and the top of valance band change from s-state to p-state or d-state for confined electron and hole inside IPQD, respectively. The strength of the inverse parabolic potential (potential hump) inside a quantum dot has the upper hand in tuning the ground state momentum for both electron and hole, and consequently their interband transition energy is changed. Knowing that this is not the case for the other types of potentials. The quantum size, the magnetic field and inverse potential hump effects on electron and hole ground and excited states are discussed.