journal article·2026-01Open access

Spontaneous Wrinkle Collapse in Anisotropic Condensed Matter Predicted by Deep Learning

Kitae Kim, Jun‐Hee Na

Small· Volume 22· Issue 4

Abstract

Abstract A deep learning framework is presented for predicting equilibrium nematic liquid crystal configurations, trained on datasets generated by a finite element Landau–de Gennes solver. The model, a 3D U‐Net, accurately captures both global orientational order and local defect structures, providing predictions in milliseconds compared to conventional simulations. Reliability is validated by comparing simulated director fields with experimental observations on photoaligned wrinkle substrates fabricated using azobenzene‐based photoalignment solution and reactive mesogens. Wrinkle orientations accurately report local molecular alignment, enabling direct comparison with predicted structures and POM images. The network demonstrates strong fidelity across diverse boundary conditions, including complex defect patterns and high‐order topological charges, where the spontaneous collapse of high‐energy defects and their subsequent spontaneous splitting is accurately reproduced. This approach establishes a robust, data‐driven surrogate for nematic systems, bridging theory and experiment, and offers a generalizable route toward designing and controlling topological textures in condensed matter for applications in photonics, reconfigurable optics, and defect‐engineered materials.
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Research context

OpenAlex topics: Advanced Materials and Mechanics · Liquid Crystal Research Advancements · Photonic Crystals and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Convergence System Engineering Chungnam National University 99 Daehak‐ro, Yuseong‐gu Daejeon 34134 Republic of Korea

Department of Electrical Electronics, and Communication Engineering Education Chungnam National University 99 Daehak‐ro, Yuseong‐gu Daejeon 34134 Republic of Korea

Funding

Ministry of Science and ICT, South Korea

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