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arXiv 1209.5673hep-thhep-phmath-phmath.MP
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高自旋场量子化的投影算符方法

Projection operator approach to the quantization of higher spin fields

Gabor Zsolt Toth

摘要:

给出了在正则哈密顿框架下构造自旋任意确定的大质量粒子自由量子场的一般方法。该方法的主要思想是:引入一个满足正则(反)对易关系的多分量Klein-Gordon场作为辅助高自旋场,通过适当的微分算子作用于辅助场得到物理高自旋场.这使得计算的(反)交换关系,格林函数和费曼传播更高的自旋场。此外,正则运动方程,这是表示在辅助变量,也可以得到在相互作用的存在下,如果相互作用哈密顿算子是已知的。所考虑的场根据洛伦兹群的(n/2,m/2)+(m/2,n/2)和(n/2,m/2)表示变换。

英文摘要:

A general method to construct free quantum fields for massive particles of arbitrary definite spin in a canonical Hamiltonian framework is presented. The main idea of the method is as follows: a multicomponent Klein-Gordon field that satisfies canonical (anti)commutation relations and serves as an auxiliary higher spin field is introduced, and the physical higher spin field is obtained by acting on the auxiliary field by a suitable differential operator. This allows the calculation of the (anti)commutation relations, the Green functions and the Feynman propagators of the higher spin fields. In addition, canonical equations of motions, which are expressed in terms of the auxiliary variables, can be obtained also in the presence of interactions, if the interaction Hamiltonian operator is known. The fields considered transform according to the (n/2,m/2) + (m/2,n/2) and (n/2,m/2) representations of the Lorentz group.

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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