论文标题
扰动性重力和超级重力
Unimodular Gauge in Perturbative Gravity and Supergravity
论文作者
论文摘要
本文解释了在扰动BRST结构的框架中重力和超级重力的单次量规固定。非物理部门包含额外的BRST练习四重奏，以抑制可能的歧义，并将单模型的固定条件施加在度量标准上，也施加了对标准单模型部分的重新配置对称性的规格条件。在超级重力的情况下，必须通过Rarita-Schinginger Field的$γ$跟踪量规条件来完成度量标准的单量规选择。这为重力和超级重力提供了一个有趣的新仪表。
This paper explains the Unimodular gauge fixing of gravity and supergravity in the framework of a perturbative BRST construction. The unphysical sector contains additional BRST-exact quartets to suppress possible ambiguities and impose both the Unimodular gauge fixing condition on the metric and a gauge condition for the reparametrization symmetry of the unimodular part of the metric. The Unimodular gauge choice of the metric must be completed by a $γ$-Traceless gauge condition for the Rarita--Schwinger field in the case of supergravity. This gives an interesting new class of gauges for gravity and supergravity.
