arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.03845hep-thmath-phmath.MP
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基张量规范理论的洛伦兹不变性

Lorentz Invariance of Basis Tensor Gauge Theory

Edward Basso, Daniel J. H. Chung

摘要:

基张量规范理论(BTGT)是对普通规范理论的一种维尔拜因模拟重新表述,其中维尔拜因场描述威尔逊线。在简要回顾了BTGT之后,我们澄清了与用于其量子化的变量相关的洛伦兹群表示性质。特别地,我们证明了从满足Lorentz不变U(1,3)矩阵约束的SO(1,3)表示出发,BTGT引入了Lorentz标架选择来挑选由u(1,3)的Cartan子代数生成的阿贝尔群流形,以便于量子化,尽管理论是标架无关的.这种选择框架的自由可以被看作是BTGT的一种额外的对称性,这在以前并没有被强调。然后,我们展示了如何一个$S_4$置换对称性和宇称对称性的框架领域自然在BTGT可以用来构建可重正化的规范理论,引入框架相关的领域,但保持框架独立微扰没有任何明确的参考通常的规范场。

英文摘要:

Basis tensor gauge theory (BTGT) is a vierbein analog reformulation of ordinary gauge theories in which the vierbein field describes the Wilson line. After a brief review of the BTGT, we clarify the Lorentz group representation properties associated with the variables used for its quantization. In particular, we show that starting from an SO(1,3) representation satisfying the Lorentz-invariant U(1,3) matrix constraints, BTGT introduces a Lorentz frame choice to pick the Abelian group manifold generated by the Cartan subalgebra of u(1,3) for the convenience of quantization even though the theory is frame independent. This freedom to choose a frame can be viewed as an additional symmetry of BTGT that was not emphasized before. We then show how an $S_4$ permutation symmetry and a parity symmetry of frame fields natural in BTGT can be used to construct renormalizable gauge theories that introduce frame dependent fields but remain frame independent perturbatively without any explicit reference to the usual gauge field.

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