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.

中文翻译：

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具有物理基态波函数的扩展Hořava重力

我们基于以下三个条件提出了新的Hořava引力扩展理论：（i）功率计数可重归一化，（ii）健康的IR行为，以及（iii）在该理论的量化版本中具有稳定的真空状态。与其他扩展理论相比，我们强调，进行量化时，任何现实的重力理论都必须具有物理基态。为了满足这三个条件，我们轻柔地打破了详细的平衡，但保持其基本结构不变。事实证明，这种方式构建的新模式，可避免强耦合问题和遗体功率计数重整的，而且，通过参数的适当选择有稳定的真空状态。