Noncommutative gauge theory without Lorentz violation

被引：74

作者：

Carlson, CE ^{[1
]}

Carone, CD

Zobin, N

机构：

[1] Coll William & Mary, Dept Phys, Nucl & Particle Theory Grp, Williamsburg, VA 23187 USA

[2] Coll William & Mary, Dept Math, Williamsburg, VA 23187 USA

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.66.075001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The most popular noncommutative field theories are characterized by a matrix parameter theta(munu) that violates Lorentz invariance. We consider the simplest algebra in which the theta parameter is promoted to an operator and Lorentz invariance is preserved. This algebra arises through the contraction of a larger one for which explicit representations are already known. We formulate a star product and construct the gauge-invariant Lagrangian for Lorentz-conserving noncommutative QED. Three-photon vertices are absent in the theory, while a four-photon coupling exists and leads to a distinctive phenomenology.

引用

页数：8

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