论文标题

加强温暖通货膨胀中的de de de swampland猜想

Strengthening the de Sitter swampland conjecture in warm inflation

论文作者

Brandenberger, Robert, Kamali, Vahid, Ramos, Rudnei O.

论文摘要

在有效标量理论的空间上,与超弦理论一致的“ de Sitter约束”提供了标量场电位的斜率下的下限,该斜率主导了宇宙的演化,例如假设的源自宇宙场。尽管具有规范归一化场的单个标量场膨胀模型不遵守这一约束,但最近在文献中声称,在耗散较大的情况下,温暖的通货膨胀模型可以与其兼容。已知De Sitter约束是从熵考虑得出的。由于需要温暖的通货膨胀涉及熵的产生,因此有必要确定该熵产生将如何影响Swampland条件施加的约束。在这里,我们将这些熵的考虑概括为温暖的通货膨胀情况,并表明电势上的状况基本上保持不变,因此即使在温暖的通货膨胀动力学中也是强大的。然后,我们能够得出结论,暖通货膨胀的模型确实可以与“滚动”标准一致。

The "de Sitter constraint" on the space of effective scalar field theories consistent with superstring theory provides a lower bound on the slope of the potential of a scalar field which dominates the evolution of the Universe, e.g., a hypothetical inflaton field. Whereas models of single scalar field inflation with a canonically normalized field do not obey this constraint, it has been claimed recently in the literature that models of warm inflation can be made compatible with it in the case of large dissipation. The de Sitter constraint is known to be derived from entropy considerations. Since warm inflation necessary involves entropy production, it becomes necessary to determine how this entropy production will affect the constraints imposed by the swampland conditions. Here, we generalize these entropy considerations to the case of warm inflation and show that the condition on the slope of the potential remains essentially unchanged and is, hence, robust even in the warm inflation dynamics. We are then able to conclude that models of warm inflation indeed can be made consistent with the "swampland" criteria.

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