超材料宇宙暴胀的实验模拟
Experimental Modeling of Cosmological Inflation with Metamaterials
摘要：
最近，我们证明了在双曲超材料中沿某些空间方向的单色异常光分布的映射可以模拟时间的流动，并创建大爆炸的实验玩具模型。在这里，我们扩展这个模型来模拟宇宙膨胀。这个想法在用二维等离子体双曲超材料进行的实验中得到了说明。双曲型超材料中经常存在的空间色散导致了暴胀型超材料时空的尺度相关（分形）结构。我们模型的这一特征复制了真实可观测宇宙的假设分形结构。
英文摘要：
Recently we demonstrated that mapping of monochromatic extraordinary light distribution in a hyperbolic metamaterial along some spatial direction may model the flow of time and create an experimental toy model of the big bang. Here we extend this model to emulate cosmological inflation. This idea is illustrated in experiments performed with two-dimensional plasmonic hyperbolic metamaterials. Spatial dispersion which is always present in hyperbolic metamaterials results in scale-dependent (fractal) structure of the inflationary "metamaterial spacetime". This feature of our model replicates hypothesized fractal structure of the real observable universe.
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