Efficient VQE Approach for Accurate Simulations on the Kagome Lattice

TL;DR

This paper develops an optimized Variational Quantum Eigensolver (VQE) approach tailored for the Kagome lattice, enhancing the accuracy of quantum simulations of complex magnetic materials.

Contribution

It introduces multiple ansatz models and compares optimization techniques to improve VQE accuracy on the Kagome lattice.

Findings

High-accuracy ground state estimations achieved

Optimization methods significantly impact VQE performance

Advances understanding of quantum materials with complex lattice structures

Abstract

The Kagome lattice, a captivating lattice structure composed of interconnected triangles with frustrated magnetic properties, has garnered considerable interest in condensed matter physics, quantum magnetism, and quantum computing.The Ansatz optimization provided in this study along with extensive research on optimisation technique results us with high accuracy. This study focuses on using multiple ansatz models to create an effective Variational Quantum Eigensolver (VQE) on the Kagome lattice. By comparing various optimisation methods and optimising the VQE ansatz models, the main goal is to estimate ground state attributes with high accuracy. This study advances quantum computing and advances our knowledge of quantum materials with complex lattice structures by taking advantage of the distinctive geometric configuration and features of the Kagome lattice. Aiming to improve the effectiveness and accuracy of VQE implementations, the study examines how Ansatz Modelling, quantum effects, and optimization techniques interact in VQE algorithm. The findings and understandings from this study provide useful direction for upcoming improvements in quantum algorithms,quantum machine learning and the investigation of quantum materials on the Kagome Lattice.