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Quantum Chemistry

Benchmarking Variational Quantum Eigensolvers for Entanglement Detection in Many-Body Hamiltonian Ground States

arXiv
Authors: Alexandre Drinko, Guilherme I. Correr, Ivan Medina, Pedro C. Azado, Askery Canabarro, Diogo O. Soares-Pinto

Year

2024

Paper ID

65724

Status

Preprint

Abstract Read

~2 min

Abstract Words

93

Citations

N/A

Abstract

Variational quantum algorithms (VQAs) have emerged in recent years as a promise to obtain quantum advantage. These task-oriented algorithms work in a hybrid loop combining a quantum processor and classical optimization. Using a specific class of VQA named variational quantum eigensolvers (VQEs), we choose some parameterized quantum circuits to benchmark them at entanglement witnessing and entangled ground state detection for many-body systems described by Heisenberg Hamiltonian, varying the number of qubits and shots. Quantum circuits whose structure is inspired by the Hamiltonian interactions presented better results on cost function estimation than problem-agnostic circuits.

Why This Paper Matters

  • This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
  • It adds a 2024 reference point for readers tracking recent quantum research.
  • Variational quantum algorithms (VQAs) have emerged in recent years as a promise to obtain quantum advantage.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2407.04453 [2] arXiv https://arxiv.org/abs/2407.04453 [3] Publisher https://arxiv.org/abs/2407.04453

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