标题： 在U(1)希格斯模型中控制非多项式约化有限温度作用量 显示英文标题

标题： Controlling a Non-Polynomial Reduced Finite Temperature Action in the U(1) Higgs Model

摘要： 通过所有非静态场的两环积分以及矢量势的屏蔽电分量，构建了标量电动力学的有效理论。 作用量的非多项式项被保留，并包含在约化理论的有效势的两环计算中。 还表明包含某些非局部项是重要的。 非多项式算符对对称性恢复相变的影响与局部、超可重整化近似有效理论的结果进行了定量比较。 显示英文摘要

摘要： An effective theory is constructed for the scalar electrodynamics via 2-loop integration over all non-static fields and the screened electric component of the vector-potential. Non-polynomial terms of the action are preserved and included into the 2-loop calculation of the effective potential of the reduced theory. Also the inclusion of some non-local terms is shown to be important. The effect of non-polynomial operators on the symmetry restoring phase transition is quantitatively compared to results from a local, superrenormalisable approximate effective theory.