AutoMS: Multi-Agent Evolutionary Search for Cross-Physics Inverse Microstructure Design

• URL: http://arxiv.org/abs/2603.27195v1
• Date: Sat, 28 Mar 2026 08:51:33 GMT
• Title: AutoMS: Multi-Agent Evolutionary Search for Cross-Physics Inverse Microstructure Design
• Abstract summary: AutoMS is a multi-agent neuro-symbolic framework that reformulates inverse design as an evolutionary search.<n>Our novel Simulation-Aware Evolutionary Search (SAES) addresses the "blindness" of traditional evolutionary strategies.<n>AutoMS achieves a state-of-the-art 83.8% success rate on 17 diverse cross-physics tasks.
• Score: 5.793027603299694
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Designing microstructures that satisfy coupled cross-physics objectives is a fundamental challenge in material science. This inverse design problem involves a vast, discontinuous search space where traditional topology optimization is computationally prohibitive, and deep generative models often suffer from "physical hallucinations," lacking the capability to ensure rigorous validity. To address this limitation, we introduce AutoMS, a multi-agent neuro-symbolic framework that reformulates inverse design as an LLM-driven evolutionary search. Unlike methods that treat LLMs merely as interfaces, AutoMS integrates them as "semantic navigators" to initialize search spaces and break local optima, while our novel Simulation-Aware Evolutionary Search (SAES) addresses the "blindness" of traditional evolutionary strategies. Specifically, SAES utilizes simulation feedback to perform local gradient approximation and directed parameter updates, effectively guiding the search toward physically valid Pareto frontiers. Orchestrating specialized agents (Manager, Parser, Generator, and Simulator), AutoMS achieves a state-of-the-art 83.8\% success rate on 17 diverse cross-physics tasks, nearly doubling the performance of traditional NSGA-II (43.7\%) and significantly outperforming ReAct-based LLM baselines (53.3\%). Furthermore, our hierarchical architecture reduces total execution time by 23.3\%. AutoMS demonstrates that autonomous agent systems can effectively navigate complex physical landscapes, bridging the gap between semantic design intent and rigorous physical validity.

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