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arXiv 0704.1960hep-thmath-phmath.MP
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全局共形不变标量场产生的调和双局域场

Harmonic bilocal fields generated by globally conformal invariant scalar fields

Nikolay M. Nikolov, Karl-Henning Rehren, Ivan Todorov

摘要:

四维时空中一对等标度维d的全局共形不变标量场的phi_1(x_1)phi_2(x_2)的算子乘积展开中的扭二贡献是一个两变量调和的场V_1(x_1,x_2)。证明了V_1的惠更斯双局域性可以等价地用与乘积φ_1(x_1)φ_2(x_2)有关的(有理)关联函数的极点结构的“单极性”来刻画.该性质是针对φ_1、φ_2的维度d=2建立的。作为一个应用,我们证明了任何系统的GCI标量场的共形维数2(在4个时空维)可以提出作为一个(可能是无限的)叠加的产品的自由无质量场。

英文摘要:

The twist two contribution in the operator product expansion of phi_1(x_1) phi_2(x_2) for a pair of globally conformal invariant, scalar fields of equal scaling dimension d in four space-time dimensions is a field V_1(x_1,x_2) which is harmonic in both variables. It is demonstrated that the Huygens bilocality of V_1 can be equivalently characterized by a "single-pole property" concerning the pole structure of the (rational) correlation functions involving the product phi_1(x_1) phi_2(x_2). This property is established for the dimension d=2 of phi_1, phi_2. As an application we prove that any system of GCI scalar fields of conformal dimension 2 (in four space-time dimensions) can be presented as a (possibly infinite) superposition of products of free massless fields.

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。

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