张量标量比运行的教训
The lessons from the running of the tensor-to-scalar ratio
摘要：
我们推导出一个简单的一致性关系，从运行的张量标量比。这个新的关系式在慢滚近似中是一阶的。虽然对于单场模型，我们可以通过使用其他观测量来获得，但多场情况通常会给出依赖于场空间几何和暴胀动力学的非平凡贡献，这可以从这个关系式中进行观测探索。张量-标量比的变化可以通过直接激光干涉仪实验来检测。
英文摘要：
We derive a simple consistency relation from the running of the tensor-to-scalar ratio. This new relation is first order in the slow-roll approximation. While for single field models we can obtain what can be found by using other observables, multi-field cases in general give non-trivial contributions dependent on the geometry of the field space and the inflationary dynamics, which can be probed observationally from this relation. The running of the tensor-to-scalar ratio may be detected by direct laser interferometer experiments.
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