arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1509.00596hep-th
收藏

具有一般平移不变星积的非对易场论

Noncommutative Field Theory With General Translation Invariant Star Products

Manolo Rivera

摘要:

我们计算两点和四点格林函数的非对易$ϕ^{4}$场论,首先与s-有序的星产品,然后与一般的平移不变的星产品。我们推导出任何平移不变的星形乘积的微分表达式,并借助这个表达式证明了这些乘积都可以用扭曲来表示。最后,利用无穷小Poincaré变换的扭曲作用的概念,我们证明了坐标函数之间的交换子在变形水平下的Poincaré变换下是不变的。

英文摘要:

We compute the two-point and four-point Green's function of the noncommutative $ϕ^{4}$ field theory; first with the s-ordered star products and then with a general translation invariant star product. We derive the differential expression for any translation invariant star product, and with the help of this expression we show that any of these products can be written in terms of a twist. Finally, using the notion of the twisted action of the infinitesimal Poincaré transformations, we show that the commutator between the coordinate functions is invariant under Poincaré transformations at a deformed level.

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。

↑