arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1404.0941hep-th
收藏

非对易量子电动力学的Källén-Lehmann表示

Källén-Lehmann representation of noncommutative quantum electrodynamics

R. Bufalo, T. R. Cardoso, B. M. Pimentel

摘要:

非对易(NC)量子场论是许多分析的主题,在形式和一般方面寻找偏差,因此,潜在的非对易时空效应。在这一大类中,我们现在可以关注低维NC场论的量子化,并仔细研究规范场的动力学质量生成问题。这项工作包括二维有质量量子电动力学和三维拓扑有质量量子电动力学的量子化。我们首先利用微扰的Seiberg-Witten映射来解决一般维度上的问题,从而构造一个一般作用,然后才能将问题指定为二维和三维。量子化通过Källén-Lehmann谱表示和Yang-Feldman-Källén公式进行,在那里我们计算相应的规范场的谱密度函数。此外,对于光子两点函数,我们讨论了它的红外行为与二维量子修正项的关系,并进一步研究了三维量子修正项对动力学质量产生的影响.

英文摘要:

Noncommutative (NC) quantum field theory is the subject of many analyses on formal and general aspects looking for deviations and, therefore, potential noncommutative spacetime effects. Within of this large class, we may now pay some attention to the quantization of NC field theory on lower dimensions and look closely at the issue of dynamical mass generation to the gauge field. This work encompasses the quantization of the two-dimensional massive quantum electrodynamics and three-dimensional topologically massive quantum electrodynamics. We begin by addressing the problem on a general dimensionality making use of the perturbative Seiberg-Witten map to, thus, construct a general action, to only then specify the problem to two and three dimensions. The quantization takes place through the Källén-Lehmann spectral representation and Yang-Feldman-Källén formulation, where we calculate the respective spectral density function to the gauge field. Furthermore, regarding the photon two-point function, we discuss how its infrared behavior is related to the term generated by quantum corrections in two dimensions, and, moreover, in three dimensions, we study the issue of nontrivial θ-dependent corrections to the dynamical mass generation.

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。

↑