Reverse Engineering Approach to Quantum Electrodynamics

• 作者: Walter Smilga
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: Quantum ELECTRODYNAMICS FINE-STRUCTURE Constant ENTANGLEMENT Gauge INVARIANCE Reverse Engineering
• 年，卷（期）: 2013,（5）
• 页码范围: 561-571
• 页数: 11页
• 分类号: O41

摘要

The S matrix of e-e scattering has the structure of a projection operator that projects incoming separable product states onto entangled two-electron states. In this projection operator the empirical value of the fine-structure constant α acts as a normalization factor. When the structure of the two-particle state space is known, a theoretical value of the normalization factor can be calculated. For an irreducible two-particle representation of the Poincaré group, the calculated normalization factor matches Wyler’s semi-empirical formula for the fine-structure constant α. The empirical value of α, therefore, provides experimental evidence that the state space of two interacting electrons belongs to an irreducible two-particle representation of the Poincaré group.