Bridging Quantum and Classical Computing in Drug Design: Architecture Principles for Improved Molecule Generation

Fuente: arXiv
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Main Authors: Smith, Andrew, Guven, Erhan
Format: Preprint
Published: 2025
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author Smith, Andrew
Guven, Erhan
author_facet Smith, Andrew
Guven, Erhan
contents Hybrid quantum-classical machine learning offers a path to leverage noisy intermediate-scale quantum (NISQ) devices for drug discovery, but optimal model architectures remain unclear. We systematically optimize the quantum-classical bridge architecture of generative adversarial networks (GANs) for molecule discovery using multi-objective Bayesian optimization. Our optimized model (BO-QGAN) significantly improves performance, achieving a 2.27-fold higher Drug Candidate Score (DCS) than prior quantum-hybrid benchmarks and 2.21-fold higher than the classical baseline, while reducing parameter count by more than 60%. Key findings favor layering multiple (3-4) shallow (4-8 qubit) quantum circuits sequentially, while classical architecture shows less sensitivity above a minimum capacity. This work provides the first empirically-grounded architectural guidelines for hybrid models, enabling more effective integration of current quantum computers into pharmaceutical research pipelines.
format Preprint
id arxiv_https___arxiv_org_abs_2506_01177
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bridging Quantum and Classical Computing in Drug Design: Architecture Principles for Improved Molecule Generation
Smith, Andrew
Guven, Erhan
Machine Learning
Artificial Intelligence
Biomolecules
Hybrid quantum-classical machine learning offers a path to leverage noisy intermediate-scale quantum (NISQ) devices for drug discovery, but optimal model architectures remain unclear. We systematically optimize the quantum-classical bridge architecture of generative adversarial networks (GANs) for molecule discovery using multi-objective Bayesian optimization. Our optimized model (BO-QGAN) significantly improves performance, achieving a 2.27-fold higher Drug Candidate Score (DCS) than prior quantum-hybrid benchmarks and 2.21-fold higher than the classical baseline, while reducing parameter count by more than 60%. Key findings favor layering multiple (3-4) shallow (4-8 qubit) quantum circuits sequentially, while classical architecture shows less sensitivity above a minimum capacity. This work provides the first empirically-grounded architectural guidelines for hybrid models, enabling more effective integration of current quantum computers into pharmaceutical research pipelines.
title Bridging Quantum and Classical Computing in Drug Design: Architecture Principles for Improved Molecule Generation
topic Machine Learning
Artificial Intelligence
Biomolecules
url https://arxiv.org/abs/2506.01177