标题： 从膨胀异常中耦合的暗能量和暗物质 显示英文标题

标题： Coupled dark energy and dark matter from dilatation anomaly

摘要： 宇宙学逃逸解在无限时间的渐近极限中可能表现出精确的标度对称性。 在此极限下，无质量的稀疏子或宇宙子可能伴随着另一个无质量的标量场——几何子。 在有限时间下，由于标度对称性的不完善，宇宙子和几何子仍然存在小的时变质量。 对于足够大的质量，几何子将开始振荡并起到暗物质的作用，而宇宙子则负责暗能量。 两个场的质量的共同起源导致了暗物质和暗能量之间的有效相互作用。 对于有效宇宙子-几何子势的一种简单形式，可以得到现实的宇宙学模型。 我们发现几何子的质量倒数大小足以减少星系内结构的形成。 显示英文摘要

摘要： Cosmological runaway solutions may exhibit an exact dilatation symmetry in the asymptotic limit of infinite time. In this limit, the massless dilaton or cosmon could be accompanied by another massless scalar field - the geon. At finite time, small time-dependent masses for both the cosmon and geon are still present due to imperfect dilatation symmetry. For a sufficiently large mass the geon will start oscillating and play the role of dark matter, while the cosmon is responsible for dark energy. The common origin of the mass of both fields leads to an effective interaction between dark matter and dark energy. Realistic cosmologies are possible for a simple form of the effective cosmon-geon-potential. We find an inverse geon mass of a size where it could reduce subgalactic structure formation.