论文标题
强耦合时的CMB限制单轨道通货膨胀
CMB constraints on monodromy inflation at strong coupling
论文作者
论文摘要
我们对强耦合时的田间理论单轨道通货膨胀进行了彻底的数值检查。我们使用高斯的可能性进行MCMC分析，并在频谱指数上使用CMB约束拟合多参数模型，并在张量与标量比上拟合。我们表明，排除了具有独特正向威尔逊系数的模型。如果有两个符号的系数可以取消，则可以取消术语，从而使电势变平并允许一个人满足当前数据，并预测对标量与标量比的限制有很强的限制。野外理论单构模型自然可以增强，以包括通过真空能量隔离（VES）取消辐射校正到真空能量的机制。尽管它们包含一个更大的参数空间，但我们发现类似的数值检查在VES增强模型的贝叶斯证据中没有显着变化，并且自然考虑使它们从理论的角度来看更具吸引力。
We carry out a thorough numerical examination of field theory monodromy inflation at strong coupling. We perform an MCMC analysis using a Gaussian likelihood, fitting multiparameter models using CMB constraints on the spectral index and the tensor to scalar ratio. We show that models with uniquely positive Wilson coefficients are ruled out. If there are coefficients that can take on both signs, there can be a cancellation of terms that flattens the potentials and allows one to satisfy current data, and forecasts with strong constraints on the tensor to scalar ratio. Models of field theory monodromy are naturally enhanced to include a mechanism for canceling off radiative corrections to vacuum energy, via vacuum energy sequestering (VES). Although they include a much larger parameter space, we find that a similar numerical examination yields no significant change in the Bayesian evidence for VES enhanced models, with naturalness considerations making them more attractive from a theoretical perspective.
