Extended Hořava Gravity with Physical Ground-State Wavefunction
Extended Hořava Gravity with Physical Ground-State Wavefunction
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DOI：
10.3390/sym13010100
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发表时间：
2010-09
期刊：
影响因子：
--
通讯作者：
Fu-Wen Shu;Tao Zhang
中科院分区：
文献类型：
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作者：
Fu-Wen Shu;Tao Zhang
我们提出了一个新的推广的Hoglavava引力理论，基于以下三个条件：（i）功率计数可重整化，（ii）健康的IR行为和（iii）一个稳定的真空态的量子化版本的理论。与其他推广的引力理论相比，我们强调任何现实的引力理论在量子化时都必须具有物理基态。为了满足这三个条件，我们轻轻地打破了细节平衡，但保持其基本结构不变。结果表明，该模型不仅避免了强耦合问题，而且具有幂次可重整化性，而且通过适当的参数选择，该模型具有稳定的真空态.
We propose a new extended theory of Hořava gravity based on the following three conditions: (i) power-counting renormalizable, (ii) healthy IR behavior and (iii) a stable vacuum state in a quantized version of the theory. Compared with other extended theories, we stress that any realistic theory of gravity must have physical ground states when quantization is performed. To fulfill the three conditions, we softly break the detailed balance but keep its basic structure unchanged. It turns out that the new model constructed in this way can avoid the strong coupling problem and remains power-counting renormalizable, moreover, it has a stable vacuum state by an appropriate choice of parameters.