The LSZ reduction formula 东南游 学物理的22 人赞同了该文章 PS:主要参考资料见题图;红字部分是我本人也有一些疑惑的地方,尚未完全证明或者做过相关实际的练习,但不影响主要内容。 PPS:欢迎讨论和指正!!! 发布于 2018-07-10 11:53 量子场论 物理学 高等量子力学 赞同...
LSZ reduction formulanoncommutative theoryaxiomatic quantum field theoryAn analogue of the Lehmann–Symanzik–Zimmermann (LSZ) reduction formula is obtained for the case of noncommutative space–space theory. Some consequences of the reduction formula and Haag's theorem are discussed....
The LSZ asymptotic condition and the Yang-Feldman equations are derived in a Wightman quantum field theory on a dense set of scattering states. The Green's distributions are shown to be sufficiently regular around the energy shell to give well-defined reduction formulae for the scattering amplitude...
The asymptotic condition is stated in the case of a non-relativistic Coulombic potential (long-range interaction), and the corresponding LSZ reduction formula is established for the S-matrix elements of the theory. Since the Coulombic Green function is known in closed (non-perturbative) form, we...
An exact formulation of LSZ field theory is given. It is based on the Wightman axioms, asymptotic completeness, and a technical assumption stating the existence of retarded products of field operators. Reduction formulae are derived directly from the strong asymptotic condition. The GLZ-theorem, ...
The Green's distributions are shown to be sufficiently regular around the energy shell to give well-defined reduction formulae for the scattering amplitudes.doi:10.1007/BF01646494Klaus HeppSpringer-VerlagCommunications in Mathematical PhysicsK. Hepp, On the connection between the LSZ and Wightman ...
LSZ约化公式是属于量子场论中,十分重要的公式。它是考虑相互作用以后求解场的演化性质。LSZ公式就是给出一个散射矩阵和关联函数之间的关系。基本介绍 微观高能物理实验中,我们实际上对相互作用的细节无法测量。我们只知道反应前的粒子数(亮度)和反应后的末态数,实际表现为反应截面和衰变宽度。它们都由S矩阵元来...