Light Front Boson Model Propagation  

作　　者：Jorge Henrique Sales Alfredo Takashi Suzuki 

机构地区：[1]Universidade Estadual de Santa Cruz,km 16 Rodovia Ilheus-Itabuna-45662-900-Ilheus,BA,Brazil [2]Instituto de Fisica Teorica,UNESP-Universidade Estadual Paulista,Rua Dr.Bento Teobaldo Ferraz 271-Bl.Ⅱ,Barra Funda,01140-070,Sao Paulo,Sao Paulo,Brazil

出　　处：《Communications in Theoretical Physics》2011年第6期1029-1040,共12页理论物理通讯（英文版）

摘　　要：The scope and aim of this work is to describe the two-body interaction mediated by a particle （either the scalar or the gauge boson） within the light-front formulation. To do this, first of all we point out the importance of propagators and Green functions in Quantum Mechanics. Then we project the covariant quantum propagator onto the light front time to get the propagator for scalar particles in these coordinates. This operator propagates the wave function from x＋ = 0 to x＋ 〉 0. It corresponds to the definition of the time ordering operation in the light front time x＋. We calculate the light-front Green＇s function for 2 interacting bosons propagating forward in x＋. We also show how to write down the light front Green＇s function from the Feynman propagator and finally make a generalization to N bosons.

关 键 词：insert light-front BOSONS PROPAGATION 

分 类 号：O431.2[机械工程—光学工程]