论文标题
双曲线超材料中的模拟量子重力
Analogue quantum gravity in hyperbolic metamaterials
论文作者
论文摘要
众所周知，双曲线材料中的非凡光子可以描述为生活在有效的Minkowski时空中，该时间由这些超材料中强烈各向异性介电张量的特殊形式定义。在这里，我们证明在此近似值的范围内，双曲线超材料中的声波看起来与重力波相似，因此量化的声波（声子）看起来与引力相似。这种量子重力的模拟模型在双曲线超材料的相变附近看起来特别有趣，在这种模型中，可能会随着超材料温度的函数开关和关闭量子重力效应。我们还可以预测基于铁氟的双曲线材料中声发光的强烈增强，这看起来类似于强力引力场中的颗粒产生。
It is well known that extraordinary photons in hyperbolic metamaterials may be described as living in an effective Minkowski spacetime, which is defined by the peculiar form of the strongly anisotropic dielectric tensor in these metamaterials. Here we demonstrate that within the scope of this approximation the sound waves in hyperbolic metamaterials look similar to gravitational waves, and therefore the quantized sound waves (phonons) look similar to gravitons. Such an analogue model of quantum gravity looks especially interesting near the phase transitions in hyperbolic metamaterials where it becomes possible to switch quantum gravity effects on and off as a function of metamaterial temperature. We also predict strong enhancement of sonoluminescence in ferrofluid based hyperbolic metamaterials, which looks analogous to particle creation in strong gravitational fields.
