标题： 张量-多标量引力的有效流体混合物 显示英文标题

标题： Effective fluid mixture of tensor-multi-scalar gravity

摘要： 我们将基于引力标量场作为耗散有效流体的表示的有效流体分析应用于张量-多标量引力。 这种推广带来了新的挑战，因为有效流体现在是相互耦合的单独流体的复杂混合物，其描述可能有多种参考系。 它们都是合法的，尽管并非所有参考系都适用于特定问题，且它们会导致不同的物理解释。 其中两个参考系被突出显示。 显示英文摘要

摘要： We apply to tensor-multi-scalar gravity the effective fluid analysis based on the representation of the gravitational scalar field as a dissipative effective fluid. This generalization poses new challenges as the effective fluid is now a complicated mixture of individual fluids mutually coupled to each other and many reference frames are possible for its description. They are all legitimate, although not all convenient for specific problems, and they give rise to different physical interpretations. Two of these frames are highlighted.