Introducing non-local effects to metamaterials increases the complexity of their dispersion relation, which allows carefully designed elastic structures to mimic the peculiar roton behaviour of correlated quantum superfluids.

中文翻译：

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非本地怪事

将非局部效应引入超材料会增加其色散关系的复杂性，这使得精心设计的弹性结构能够模拟相关量子超流体的特殊旋转行为。