论文标题
关于Lorentz-Invariant Bi-Spin-2理论
On Lorentz-invariant bi-spin-2 theories
论文作者
论文摘要
我们研究了Lorentz不变动作，该动作在Minkowski时空的两个等级-2对称张量场中是二次的。我们通过Minkowski时空的三维旋转旋转不变，并根据汉密尔顿分析以七个自由度对理论分类，将标量矢量调节器分解应用于两个张量场。我们发现了两个新理论，这些理论无法通过线性化的Hassan-Rosen Bigravity映射。在这些理论中，由于作用的横向差异不变，可以允许新的质量相互作用。
We investigate a Lorentz invariant action which is quadratic in two rank-2 symmetric tensor fields in Minkowski spacetime. We apply a scalar-vector-tensor decomposition to two tensor fields by virtue of 3-dimensional rotation-invariance of Minkowski spacetime and classify theories with seven degrees of freedom based on the Hamiltonian analysis. We find two new theories, which cannot be mapped from the linearized Hassan-Rosen bigravity. In these theories, the new mass interactions can be allowed thanks to the transverse diffeomorphism invariance of action.
