查朝征, 戴建辉. 超空间挠率约束和超弦背景场几何[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 1988, (1).DOI:
超空间挠率约束和超弦背景场几何
摘要
本文指出在自洽超弦背景场上存在三类非平凡挠率约束解
其中的二类分别对应于Nilsson约束和Witten约束
它们在低能极限下等价
而另外一类挠率约束不能容纳平直超空间情形。
Abstract
By solving the consistent equations for D = 10 type IA superstring propagating in supergravity background we get two non-trivial types of torsion constriants corresponding to the Nilsson constriants and the Witten cinstraints. They are shown to be eguivalent at the low eneryy limt up to a scalar field.