论文标题
有效处理U（1）量规场和轴心通胀中带电的颗粒
Effective treatment of U(1) gauge field and charged particles in axion inflation
论文作者
论文摘要
与Chern-Simons耦合的轴子充气可能会同时生成U（1）量规场和带电的颗粒。为了将量规场上带电颗粒的反射融合，我们开发了一种程序，通过将诱导电流视为有效的电气和磁导率来获得量规场的平衡溶液。引入平均场近似值和数值求解自符抗性方程，我们发现仪表场幅度幅度急剧被抑制。有趣的是，随着产量变得更加有效，带电的颗粒从充气量中获得了更大的转移能量，并最终占主导地位。我们的形式主义提供了将这类通货膨胀模型与丰富现象学（例如男性生成和磁化）联系起来的基础。
The axionic inflaton with the Chern-Simons coupling may generate U(1) gauge fields and charged particles simultaneously. In order to incorporate the backreaction from the charged particles on the gauge fields, we develop a procedure to obtain an equilibrium solution for the gauge fields by treating the induced current as effective electric and magnetic conductivities. Introducing mean field approximation, and numerically solving self-consistency equations, we find that the gauge field amplitudes are drastically suppressed. Interestingly, as the production becomes more efficient, the charged particles gain a larger part of the transferred energy from the inflaton and eventually dominate it. Our formalism offers a basis to connect this class of inflationary models to a rich phenomenology such as baryogenesis and magnetogenesis.
