In this work we establish only at background dynamics level, the equivalence between the Created Cold Dark Matter (CCDM) model and diverse dark energy (DE) models. We find that for a barotropic or linear equation of state (EoS) for the DE, , and standard matter sector the corresponding CCDM model is described by the same functional structure of the ratio of particle production, . For a different EoS the functional form of the term is not longer maintained, however, in the case of a polytropic EoS given by the Chaplygin gas the resulting term can be written as the one obtained in the barotropic case under certain considerations.

中文翻译：

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通过创建的冷暗物质场景，用已知的状态方程模拟暗能量模型

在这项工作中，我们仅在背景动力学水平上建立了创造冷暗物质（CCDM）模型和各种暗能量（DE）模型之间的等价性。我们发现，对于 DE、 和标准物质扇区的正压或线性状态方程 (EoS)，相应的 CCDM 模型由粒子产生率 的相同函数结构描述。对于不同的 EoS，不再保留该项的函数形式，但是，在 Chaplygin 气体给出的多变 EoS 的情况下，在某些考虑下，所得项可以写为在正压情况下获得的项。