Embodiment of mechanical logic in metamaterials utilizing higher-order topological states

What is it about?

In this article, we harness topological states of matter to synthesize wave-based logic in mechanical metamaterials. To achieve this new paradigm of mechanical logic, we encode information within vibrations and engineer an architected metamaterial to emulate each of the binary logic gates.

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Why is it important?

This research has profound implications for the fields of mechanical intelligence and mechanical computing, as it creates wave-based mechanical logic that is robust to structural imperfections and can operate in parallel across multiple frequency bands. In particular, it is the first instance of high-order topological states being utilized to create wave-based logic in mechanical metamaterials.