Benchmarking the Variational Quantum Eigensolver through Simulation of the Ground State Energy of Prebiotic Molecules on High-Performance Computers

TL;DR

This paper benchmarks the Variational Quantum Eigensolver (VQE) for calculating the ground state energies of small prebiotic molecules using simulation and quantum hardware, aiming to improve algorithm efficiency and assess quantum advantage.

Contribution

It introduces a benchmarking framework for VQE on prebiotic molecules and analyzes performance on simulated and real quantum hardware.

Findings

VQE successfully computes ground state energies of H2O and HCN.

Simulation results inform more efficient quantum algorithms.

Future work will test on quantum hardware to evaluate quantum advantage.

Abstract

We use the Variational Quantum Eigensolver (VQE) as implemented in the Qiskit software package to compute the ground state energy of small molecules derived from water, H$_2$O, and hydrogen cyanide, HCN. The work aims to benchmark algorithms for calculating the electronic structure and energy surfaces of molecules of relevance to prebiotic chemistry, beginning with water and hydrogen cyanide, and to run them on the available simulated and physical quantum hardware. The numerical calculations of the algorithms for small quantum processors allow us to design more efficient protocols to be run in real hardware, as well as to analyze their performance. Future implementations on accessible quantum processing prototypes will benchmark quantum computers and provide tests of quantum advantage with heuristic quantum algorithms.