论文标题
早期宇宙的重力
Stronger gravity in the early universe
论文作者
论文摘要
标量调节的重力理论包含与标量曲率的共形耦合的重点是宇宙学的焦点，讨论通货膨胀和延迟加速宇宙。尽管存在严格的核合成性约束，但可以通过与规格不变的量子场理论的原理一致地修改标准粒子理论的作用来表达如何逃避这一难度。结果表明，在宇宙学早期演变的早期时期的重力比以前认为的一类保形重力模型不可避免地是不可避免的。这增强了原始重力波发射和原始黑洞形成的发现潜力。如果大型团块在充气场上的冷暗物质上占据着强大的团块，并且创建的黑洞可能成为冷暗物质的主要候选者，则可能的重力效应可能是巨大的。
Scalar-tensor theories of gravity that embrace conformal coupling to the scalar curvature are the focal point of cosmology on discussions of inflation and late-time accelerating universe. Although there exists a stringent nucleo-synthesis constraint on conformal gravity, one can formulate how to evade this difficulty by modifying the standard particle theory action consistently with the principles of gauge invariant quantum field theory. It is shown that stronger gravity at early epochs of cosmological evolution than previously thought of is inevitable in a class of conformal gravity models. This enhances discovery potentials of primordial gravitational wave emission and primordial black hole formation. The strong gravity effect may be enormous if massive clumps are energetically dominated by cold dark matter made of inflaton field, and created black holes may become a major candidate of cold dark matter.
