Rapid-turn slow-roll inflationary trajectories have been shown to be an attractor in two-field models, provided the turn rate is near constant and larger than the slow-roll parameters. These trajectories can produce primordial spectra consistent with current observations on CMB scales. We present the generalized consistency condition for sustained rapid-turn inflationary trajectory with two fields, arbitrary field-space metric and potential valid for any value of the turn rate. This has to be supplemented by a second condition to ensure slow roll evolution. Both conditions together constitute a tool to identify inflationary trajectories with arbitrary values of the turning rate without having to solve the equations of motion. We present a Python package for the numerical identification of regions in field-space and parameter space that allow for rapid-turn trajectories.

中文翻译：

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快速转向通货膨胀的一般条件


快转慢滚膨胀轨迹已被证明是两场模型中的吸引子，前提是转弯速率接近恒定且大于慢滚参数。这些轨迹可以产生与宇宙微波背景尺度上当前观测结果一致的原始光谱。我们提出了持续快速转向暴胀轨迹的广义一致性条件，该轨迹具有两个场、任意场空间度量和对任何转向率值有效的潜在能力。这必须辅以第二个条件，以确保缓慢的滚动演化。这两个条件共同构成了一种工具，可以识别具有任意转动速率值的暴胀轨迹，而无需求解运动方程。我们提出了一个 Python 包，用于对场空间和参数空间中的区域进行数字识别，从而实现快速转动轨迹。