标题： 应变状态宇宙学 显示英文标题

标题： The strained state cosmology

摘要： 从一些关于宇宙在大尺度和时间跨度下的行为的相关事实出发，讨论了广义相对论的几何方法与弹性应变材料连续体的经典描述之间的类比。将弹性变形方法扩展到四维，表明宇宙的加速膨胀被恢复。时空的应变场再现了类似于当前用来解释加速膨胀的暗能量的性质。原始宇宙中的应变场表现得像辐射，但渐近地它再现了宇宙学常数。对该理论进行一系列宇宙学测试确认了该方法的合理性，并给出了模型中一个参数的最佳值，即时空连续体的体积模量。最后讨论了应变态宇宙学（SSC）的各个方面，并与一些非线性大质量引力理论进行了对比。还提到了结构拓扑缺陷的可能作用。结论是，SSC至少和LCDM标准宇宙学一样好，提供了对现象物理本质更直观的解释。 显示英文摘要

摘要： Starting from some relevant facts concerning the behaviour of the universe over large scale and time span, the analogy between the geometric approach of General Relativ- ity and the classical description of an elastic strained material continuum is discussed. Extending the elastic deformation approach to four dimensions it is shown that the accelerated expansion of the universe is recovered. The strain field of space-time repro- duces properties similar to the ones ascribed to the dark energy currently called in to explain the accelerated expansion. The strain field in the primordial universe behaves as radiation, but asymptotically it reproduces the cosmological constant. Subjecting the theory to a number of cosmological tests confirms the soundness of the approach and gives an optimal value for the one parameter of the model, i.e. the bulk modulus of the space-time continuum. Finally various aspects of the Strained State Cosmology (SSC) are discussed and contrasted with some non-linear massive gravity theories. The possible role of structure topological defects is also mentioned. The conclusion is that SSC is at least as good as the LCDM standard cosmology, giving a more intuitive interpretation of the physical nature of the phenomena.