标题： 轴子极涡 显示英文标题

标题： Axion Poltergeist

摘要： 早期宇宙中原子场的旋转可以产生暗物质和宇宙的物质-反物质不对称性。 我们指出，这种旋转可以生成可观测到的随机引力波（GW）背景。 在一类模型中，它可以通过以下两种机制双重增强：1）所谓的波尔特盖斯特机制；2）引力波的红移速度比轴子kination流体慢。在这种情况下，旋转的状态方程会从类似于非相对论性物质迅速转变为类似kination的形式。 在超对称的紫外完备化中，即使轴子不直接耦合到标准模型场，未来的引力波观测也可以探测到高达$10^7\,$GeV 的超对称破缺尺度。 显示英文摘要

摘要： Rotations of axion fields in the early universe can produce dark matter and the matter-antimatter asymmetry of the universe. We point out that the rotation can generate an observable amount of a stochastic gravitational-wave (GW) background. It can be doubly enhanced in a class of models in which the equation of state of the rotations rapidly changes from a non-relativistic matter-like one to a kination-like one by 1) the so-called poltergeist mechanism and 2) slower redshift of GWs compared to the axion kination fluid. In supersymmetric UV completion, future GW observations can probe the supersymmetry-breaking scale up to $10^7\,$GeV even if the axion does not directly couple to the Standard Model fields.