The two-loop -function for s-models with torsion
The two-loop -function for s-models with torsion
复制标题
具有扭转的 s 模型的双回路函数
DOI：
10.1016/0370-2693(87)91331-1
复制
发表时间：
1987
影响因子：
4.4
通讯作者：
C. Hull
中科院分区：
文献类型：
--
作者：
C. Hull
在双圈微扰理论下，我们计算了一般玻色二维非线性β模型的靶空间度规张量和扭势的重整化的σ函数。我们特别关注维度正则化中的交替张量问题。我们的结果具有一致的弦理论解释，但与其他作者之前发表的结果不一致。
We compute, at the two-loop order of perturbation theory, the β-functions governing the renormalization of the target space metric tensor gijand torsion potential bijof the general bosonic two-dimensional nonlinear σ-model. We pay particular attention to problems with alternating tensors in dimensional regularization. Our results, which have a consistent string theory interpretation, disagree with those published previously by other authors.