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    "headline": "The Material Stores a Mechanical Wave",
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    "dek": "A shape-memory-alloy metasurface gates, delays and separates transient mechanical signals without conventional electronics.",
    "summary": "A shape-memory-alloy metasurface gates, delays and separates transient mechanical signals without conventional electronics.",
    "body_text": "Temperature-driven phase changes reconfigure dispersion to retain waveform shape while applying programmable delay. The demonstrated framework handles input shaping and frequency demultiplexing; higher-order computing remains a proposed direction.",
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    "tags": [
      "metamaterials",
      "analog computing",
      "mechanical waves"
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      "source_id": "source-2026-11-04-020",
      "title": "arXiv preprint 2611.05180, original v1",
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