Two loop stress-energy tensor for inflationary scalar electrodynamics
Two loop stress-energy tensor for inflationary scalar electrodynamics
复制标题
用于暴涨标量电动力学的两环应力-能量张量
DOI：
10.1103/physrevd.78.043523
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发表时间：
2008
影响因子：
5
通讯作者：
R. Woodard
中科院分区：
文献类型：
--
作者：
T. Prokopec;N. Tsamis;R. Woodard
本文计算了de Sitter背景下标量电动力学中两个两圈级场强张量重合乘积的期望值。其结果与我们在[T.普罗克什，N. C. Tsamis和R. P. Woodard，Ann. Phys.（N.Y.）323，1324（2008）]的非微扰重申领先的比例因子。当结合以前的计算标量双线性[T。普罗克什，N. C. Tsamis，和R. P. Woodard，Classical Quantum Gravity 24，201（2007）]，我们目前的结果也给出了暴胀标量电动力学的双圈应力-能量张量。这表明真空能量的长期减少，这是由带电标量的暴胀产生引起的真空极化引起的。
We calculate the expectation value of the coincident product of two field strength tensors at two loop order in scalar electrodynamics on de Sitter background. The result agrees with the stochastic formulation which we have developed in a companion paper [T. Prokopec, N. C. Tsamis, and R. P. Woodard, Ann. Phys. (N.Y.) 323, 1324 (2008)] for the nonperturbative resummation of leading logarithms of the scale factor. When combined with a previous computation of scalar bilinears [T. Prokopec, N. C. Tsamis, and R. P. Woodard, Classical Quantum Gravity 24, 201 (2007)], our current result also gives the two loop stress-energy tensor for inflationary scalar electrodynamics. This shows a secular decrease in the vacuum energy which derives from the vacuum polarization induced by the inflationary production of charged scalars.