论文标题
旋转等离子体中标量场的开放有效理论
Open effective theory of scalar field in rotating plasma
论文作者
论文摘要
我们研究了与强耦合的二维旋转CFT等离子体相互作用的开放标量场的有效动力学。有效理论取决于热等离子体的实时相关函数。我们采用全息schwinger-keldysh路径积分技术来计算有效的理论。使用全息图计算的二次有效理论导致旋转的线性langevin动力学。该方程式中的噪声和耗散项通过在有角度动量引起的化学潜力的情况下通过波动散落关系而相关。我们进一步计算开放标量场的有效理论中的高阶项。在四分之一的顺序上，我们明确计算在背景等离子体缓慢旋转时在有效动作中出现在有效动作的各个术语面前的系数函数。高阶有效理论在热噪声中具有非线性的非线性langevin方程方面具有描述。
We study the effective dynamics of an open scalar field interacting with a strongly-coupled two-dimensional rotating CFT plasma. The effective theory is determined by the real-time correlation functions of the thermal plasma. We employ holographic Schwinger-Keldysh path integral techniques to compute the effective theory. The quadratic effective theory computed using holography leads to the linear Langevin dynamics with rotation. The noise and dissipation terms in this equation get related by the fluctuation-dissipation relation in presence of chemical potential due to angular momentum. We further compute higher order terms in the effective theory of the open scalar field. At quartic order, we explicitly compute the coefficient functions that appear in front of various terms in the effective action in the limit when the background plasma is slowly rotating. The higher order effective theory has a description in terms of the non-linear Langevin equation with non-Gaussianity in the thermal noise.
