论文标题
轴子暗物质是平衡系统吗？
Is the axionic dark matter an equilibrium system?
论文作者
论文摘要
我们考虑了一个轴承暗物质模型，其在爱因斯坦 - 乙醚理论的轴突扩展框架中具有修改的周期性潜力。修改电势被认为是由引导函数配备的，这取决于构成的扩展标量，该膨胀标量是以太速度四载体的协变量衍生物的轨迹。轴磁场的平衡状态定义为状态，对于该状态，修改的电势本身及其相对于伪级场的第一个衍生物等于零。我们将开发的形式主义应用于均质的各向同性宇宙学模型，并找到基本功能，该功能描述了扩展的宇宙中轴基暗物质的平衡状态。
We consider an axionic dark matter model with a modified periodic potential for the pseudoscalar field in the framework of the axionic extension of the Einstein-aether theory. The modified potential is assumed to be equipped by the guiding function, which depends on the expansion scalar constructed as the trace of the covariant derivative of the aether velocity four-vector. The equilibrium state of the axion field is defined as the state, for which the modified potential itself and its first derivative with respect to the pseudoscalar field are equal to zero. We apply the developed formalism to the homogeneous isotropic cosmological model, and find the basic function, which describes the equilibrium state of the axionic dark matter in the expanding Universe.
