论文标题
关于MacDowell-Mansouri Action中对称性破坏条件的评论
Comments on the symmetry breaking condition in MacDowell-Mansouri action
论文作者
论文摘要
在这项工作中，我们研究了由（反）de Sitter值载体场给出的对称性破坏条件，该条件是完整的（反）Sitter-de Sitvariant MacDowell-Mansouri启发的动作。我们表明，在这种情况下，动作分解为宇宙常数，四个维拓扑不变的以及霍尔斯特术语。我们获得了此动作的运动方程，并分析对称性破坏条件。
In this work we study the symmetry breaking conditions, given by a (anti)de Sitter-valued vector field, of a full (anti)de Sitter-invariant MacDowell-Mansouri inspired action. We show that under these conditions the action breaks down to General Relativity with a cosmological constant, the four dimensional topological invariants, as well as the Holst term. We obtain the equations of motion of this action, and analyze the symmetry breaking conditions.
