Augmented orbital minimization method for linear scaling electronic structure calculations

TL;DR

This paper introduces an augmented orbital minimization algorithm that reduces redundancy in orbitals, improving linear scaling electronic structure calculations with minimal additional computational cost.

Contribution

The paper proposes a new augmented orbital minimization method that overcomes limitations of traditional linear scaling techniques by adding constraints to eliminate orbital redundancy.

Findings

Effective in ab initio molecular dynamics simulations

Performs well in model system tests

Reduces computational overhead compared to conventional methods

Abstract

We present a novel algorithm which can overcome the drawbacks of the conventional linear scaling method with minimal computational overhead. This is achieved by introducing additional constraints, thus eliminating the redundancy of the orbitals. The performance of our algorithm is evaluated in ab initio molecular-dynamics simulations as well as in a model system.