Weyl-gauging of Topologically Massive Gravity
Weyl-gauging of Topologically Massive Gravity
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DOI：
10.1103/physrevd.86.104014
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发表时间：
2012-09
影响因子：
5
通讯作者：
Suat Dengiz;Ercan Kilicarslan;B. Tekin
中科院分区：
文献类型：
--
作者：
Suat Dengiz;Ercan Kilicarslan;B. Tekin
我们构建了拓扑质量引力的外尔不变扩展，值得注意的是，它包含了拓扑质量电动力学，具有普罗卡质量项，共形耦合到标量场。该作用没有量纲参数，因此，质量是通过在平坦背景中辐射性或在恒定曲率背景中自发地对称破缺生成的。一般来说，该理论的破碎相具有单个大规模自旋 2 和大规模自旋 1 激发。渐进反德西特时空中的手性引力不会作为低能理论出现，同时也不排除德西特时空中的手性引力。
We construct a Weyl-invariant extension of topologically massive gravity which, remarkably, turns out to include topologically massive electrodynamics, with a Proca mass term, conformally coupled to a scalar field. The action has no dimensionful parameters, therefore, the masses are generated via symmetry breaking either radiatively in flat backgrounds or spontaneously in constant curvature backgrounds. The broken phase of the theory, generically, has a single massive spin-2 and a massive spin-1 excitation. Chiral gravity in asymptotically anti-de Sitter spacetimes does not arise as a low energy theory, while chiral gravity in de Sitter spacetime is not ruled out.