论文标题
在重力波的重力波浪中,超氟费米气体附近的超氟费米气体
On the Gravitational Wave to Matter Coupling of Superfluid Fermi Gases Near Unitarity
论文作者
论文摘要
众所周知,重力波在全球范围内扭曲了平衡物质,使其可与激光干涉仪检测。鲜为人知的是,重力波会在物质内部产生局部非平衡应力,这可能会导致替代性检测方法。耦合$κ$的重力波是一种运输系数,取决于材料,并且以大多数物质而闻名。在目前的工作中,我们使用大型$ n $技术来计算一fermi气体的$κ$,找到$κ= \ frac {n} {n} {12m} $,具有$ n $的数量密度和$ m $ fermion的质量,使得fermion的质量适合于dirac fermions的自由温度。我们的预测适合非扰动理论和实验测试。
It is well known that gravitational waves distort equilibrium matter globally, making them amenable to detection with laser interferometers. Less well known is the fact that gravitational waves create local non-equilibrium stresses inside matter, which could conceivably lead to alternative detection methods. The gravitational wave to matter coupling $κ$ is a transport coefficient depending on the material, and is poorly known for most substances. In the present work, we calculate $κ$ for a superfluid Fermi gas near unitarity using large-$N$ techniques, finding $κ= \frac{n}{12m}$, with $n$ the number density and $m$ the mass of the fermion, matching the result for free Dirac fermions at zero temperature. Our prediction is amenable to non-perturbative theoretical as well as experimental tests.