arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0905.0934hep-th
收藏

自由四维阿贝尔2-形式和反常二维阿贝尔1-形式规范理论

On free 4D Abelian 2-form and anomalous 2D Abelian 1-form gauge theories

S. Gupta, R. Kumar, R. P. Malik

摘要:

在Becchi-Rouet-Stora-Typhoon(BRST)形式主义的框架内,我们证明了(i)自由的四维(3 + 1)阿贝尔2-形式规范理论和(ii)反常的二维(1 + 1)阿贝尔1-形式规范理论之间的一些惊人的相似之处和一些明显的差异。我们证明了上述两种理论的拉格朗日密度变换在一组对称变换下以类似的方式进行,即使它们被赋予了截然不同的各种约束结构。借助于我们对四维阿贝尔2-形式规范理论的理解,我们证明了反常的二维阿贝尔1-形式规范理论的规范不变形式是Hodge理论的一个新的场论模型,其中微分几何的所有de Rham上同调算子都可以用适当的对称变换的语言找到它们的物理实现.相应的守恒电荷服从一个代数,这让人想起上同调算子的代数。我们简要地评论了二维反常1-形式规范理论在上述二维理论的(反)BRST和(反)co-BRST不变版本的调和态的限制语言的一致性。

英文摘要:

We demonstrate a few striking similarities and some glaring differences between (i) the free four (3 + 1)-dimensional (4D) Abelian 2-form gauge theory, and (ii) the anomalous two (1 + 1)-dimensional (2D) Abelian 1-form gauge theory, within the framework of Becchi-Rouet-Stora-Tyutin (BRST) formalism. We demonstrate that the Lagrangian densities of the above two theories transform in a similar fashion under a set of symmetry transformations even though they are endowed with a drastically different variety of constraint structures. Taking the help of our understanding of the 4D Abelian 2-form gauge theory, we prove that the gauge invariant version of the anomalous 2D Abelian 1-form gauge theory is a new field-theoretic model for the Hodge theory where all the de Rham cohomological operators of differential geometry find their physical realizations in the language of proper symmetry transformations. The corresponding conserved charges obey an algebra that is reminiscent of the algebra of the cohomological operators. We briefly comment on the consistency of the 2D anomalous 1-form gauge theory in the language of restrictions on the harmonic state of the (anti-) BRST and (anti-) co-BRST invariant version of the above 2D theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑