# Fundamental gaps of quantum dots on the cheap

## TL;DR

This paper demonstrates a simple, low-cost computational method within density-functional theory to accurately estimate the fundamental energy gaps of quantum dots, reducing the need for complex calculations.

## Contribution

It introduces a novel, efficient approach to determine quantum dot gaps using standard ground-state calculations plus a minimal additional step.

## Key findings

- Accurate gap estimation with negligible extra computational cost
- Method compatible with local-density approximation in DFT
- Simplifies quantum dot electronic property calculations

## Abstract

We show that the fundamental gaps of quantum dots can be accurately estimated at the computational effort of a standard ground-state calculation supplemented with a non self-consistent step of negligible cost, all performed within density-functional theory at the level of the local-density approximation.