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arXiv 1202.4538hep-thgr-qcmath-phmath.MP
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R x S ^3上四维量子引力的物理场和态的BRST分析

BRST Analysis of Physical Fields and States for 4D Quantum Gravity on R x S^3

Ken-ji Hamada

摘要:

考虑了基于共形引力和Riegert-Wess-Zumino作用量的无背景量子引力,该作用量是用共形场论表示的.利用$R \times S^3$在实际中的应用背景,构造了具有同态不变性的幂零BRST算子.分析了仅由具有确定共形权的实初等标量给出的物理场和物理态。注意到背景电荷的存在下,各种重要的性质,如国家运营商对应和规范结构,澄清了一些例子。

英文摘要:

We consider the background-free quantum gravity based on conformal gravity with the Riegert-Wess-Zumino action, which is formulated in terms of a conformal field theory. Employing the $R \times S^3$ background in practice, we construct the nilpotent BRST operator imposing diffeomorphism invariance. Physical fields and states are analyzed, which are given only by real primary scalars with a definite conformal weight. With attention to the presence of background charges, various significant properties, such as the state-operator correspondence and the norm structure, are clarified with some examples.

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