Two loop scalar bilinears for inflationary SQED
Two loop scalar bilinears for inflationary SQED
复制标题
膨胀 SQED 的两个循环标量双线性
DOI：
10.1088/0264-9381/24/1/011
复制
发表时间：
2006
影响因子：
3.5
通讯作者：
R. Woodard
中科院分区：
文献类型：
--
作者：
T. Prokopec;N. Tsamis;R. Woodard
我们评估了局部德西特背景下无质量、最小耦合标量量子电动力学理论中两个重合且规范不变的标量双线性的一环和二环对期望值的贡献。这些双线性之一是两个协变微分标量的乘积，另一个是两个未微分标量的乘积。计算是使用维度正则化和 Schwinger-Keldysh 形式主义完成的。我们的结果与该顺序的随机预测完全一致。
We evaluate the one- and two-loop contributions to the expectation values of two coincident and gauge invariant scalar bilinears in the theory of massless, minimally coupled scalar quantum electrodynamics on a locally de Sitter background. One of these bilinears is the product of two covariantly differentiated scalars, the other is the product of two undifferentiated scalars. The computations are done using dimensional regularization and the Schwinger–Keldysh formalism. Our results are in perfect agreement with the stochastic predictions at this order.