论文标题
轴子宇宙常数
Axionic cosmological constant
论文作者
论文摘要
我们为宇宙常数提出了一种新颖的，更高的，较高的Weyl不变且普遍融合的理论。该理论是一种模仿结构，具有仪表场的作用。这些磁场组成了Chern-simons电流，而不是henneaux和Teitelboim公式的矢量场。运动方程式精确地重现了无可怜的爱因斯坦方程。我们证明，在Weyl不变的变量中重新进行了重构，这种新颖的理论将作为Lagrange乘数的宇宙学常数与标准的一般相对论降低。该拉格朗日乘数具有类似轴的耦合。
We propose a novel, higher-derivative, Weyl-invariant and generally-covariant theory for the cosmological constant. This theory is a mimetic construction with gauge fields playing the role of dynamical variables. These fields compose the Chern-Simons current instead of the vector field used in the Henneaux and Teitelboim formulation of the unimodular gravity. The equations of motion exactly reproduce the traceless Einstein equations. We demonstrate that, reformulated in Weyl-invariant variables, this novel theory reduces to standard general relativity with the cosmological constant as a Lagrange multiplier. This Lagrange multiplier has an axion-like coupling.
