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arXiv 1109.3443gr-qc
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复时空中的微扰量子引力

Perturbative Quantum Gravity on Complex Spacetime

Mir Faizal

摘要:

本文研究了复度规时空中的非反对易微扰量子引力。在分析了这种非反对易微扰量子引力的BRST对称性之后,我们还将分析移动所有场的效应。我们将构造一个拉格朗日密度,它是不变的原始BRST变换和Batalin-Vilkovisky(BV)形式主义的移位变换。最后,我们将表明,这个移动对称不变的拉格朗日密度的规范固定项和鬼项的总和可以优雅地写下来在超空间与一个单一的格拉斯曼参数。

英文摘要:

In this paper we will study non-anticommutative perturbative quantum gravity on spacetime with a complex metric. After analysing the BRST symmetry of this non-anticommutative perturbative quantum gravity, we will also analyse the effect of shifting all the fields. We will construct a Lagrangian density which is invariant under the original BRST transformations and the shift transformations in the Batalin-Vilkovisky (BV) formalism. Finally, we will show that the sum of the gauge-fixing term and the ghost term for this shift symmetry invariant Lagrangian density can be elegantly written down in superspace with a single Grassmann parameter.

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