论文标题
从高维时段的各向异性中消失的小载体质量
A Vanishingly Small Vector Mass from Anisotropy of Higher Dimensional Spacetime
论文作者
论文摘要
我们考虑五维巨大的载体 - 重力理论，该理论基于保留差异和各向异性保形的不变性的叶面。它没有内在的量表，唯一的相关参数是各向异性因子$ z $，它表征了四维时空与额外维度之间的各向异性程度。我们假设物理规模$ m _*$是由于真空解决方案的自发保形对称破坏而出现的。已经证明，与$ m _*$相比，可以通过相对温和的参数$ z $来实现矢量粒子的质量很小。同时，还观察到沿额外维度的运动可以高度抑制，并且可以有效地将五维理论降低到四维时空。
We consider five-dimensional massive vector-gravity theory which is based on the foliation preserving diffeomorphism and anisotropic conformal invariance. It does not have an intrinsic scale and the only relevant parameter is the anisotropic factor $z$ which characterizes the degree of anisotropy between the four-dimensional spacetime and the extra dimension. We assume that physical scale $M_*$ emerges as a consequence of spontaneous conformal symmetry breaking of vacuum solution. It is demonstrated that a very small mass for the vector particle compared to $M_*$ can be achieved with a relatively mild adjustment of the parameter $z$. At the same time, it is also observed that the motion along the extra dimension can be highly suppressed and the five-dimensional theory can be effectively reduced to four-dimensional spacetime.
