We consider a non-canonic field in the context of Starobinsky inflation. We work in Einstein-frame. In this frame, the gravitational part of the action is equivalent to the Hilbert–Einstein action, plus a scalar field called scalaron. We investigate a model with a heavy scalaron trapped at the effective potential minimum, where its fluctuations are negligible. To be more explicit, we consider a Dirac–Born–Infeld (DBI) field, which is usually considered within the brane inflation context, as the non-canonic field. Although, the DBI field governs inflation through implicit dependence on Scalaron the boost factor, and other quantities are different from the standard DBI model. For appropriate parameters, this model is consistent with the Planck results.

我们考虑在Starobinsky通货膨胀的情况下的非经典领域。我们在爱因斯坦框架下工作。在此框架中，该作用的引力部分等效于希尔伯特-爱因斯坦作用，再加上一个称为标量子的标量场。我们研究了一个模型，该模型具有被限制在有效电势最小值下的重标枪，其波动可忽略不计。更明确地说，我们将狄拉克-博恩-因费尔德（DBI）场（通常在麸皮充气环境中考虑）作为非经典场。虽然，DBI字段通过隐式依赖Scalaron提升因子来控制通货膨胀，但其他数量与标准DBI模型不同。对于适当的参数，该模型与普朗克结果一致。