Quantum Electrodynamics Basis of Classical-Field High-Harmonic Generation Theory

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2001,（9）
• 所属期刊栏目: ATOMIC AND MOLECULAR PHYSICS
• 页码范围: 1196-1198
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

From the nonperturbative quantum electrodynamics theory, we derive the Landau-Dykhne formula which represents the quantum-mechanical formulation of the three-step model. These studies provide a basis for the classical-field approaches to high-order harmonic generation and justify some assumptions used in classical-field modelling.