# Photoionization cross section in a spherical quantum dot: Effects of some parabolic confining electric potentials

## TL;DR

This paper theoretically examines how different parabolic confining electric potentials affect the photoionization cross section in spherical quantum dots, revealing shifts in PCS peaks depending on potential shape.

## Contribution

It introduces and compares the effects of shifted and inverse shifted parabolic potentials on PCS in quantum dots, expanding understanding beyond standard parabolic confinement.

## Key findings

- Parabolic potential causes a red shift in PCS peaks.
- Inverse lateral shifted parabolic potential blue shifts PCS peaks.
- Potential shape significantly influences photoionization characteristics.

## Abstract

A theoretical investigation of the effects of spatial variation of confining electric potential on photoionization cross section (PCS) in a spherical quantum dot is presented. The potential profiles considered here are the shifted parabolic potential and the inverse lateral shifted parabolic potential compared with the well-studied parabolic potential. The primary findings are that parabolic potential and the inverse lateral shifted parabolic potential blue shift the peaks of the PCS while the shifted parabolic potential causes a red shift.