摘要
传统的量子场论教学方法通常是从经典场论出发,首先介绍经典场的概念和方法,然后再引入量子力学的思想,推导出量子场论的基本概念和工具。这种教学方法对于已经掌握经典场论知识的学生来说是自然的,但是对于那些只掌握量子力学的学生来说,往往会产生巨大的跳跃感。因此,我们提出了一种新的量子场论教学方法,即直接从多体量子力学出发,在正则量子化体系中引入场论的拉格朗日量,并推导出相应的哈密顿量,以此来帮助学生更好地理解量子场论的基本概念和工具。
The traditional teaching method of quantum field theory usually starts from classical field theory,introducing the concepts and methods of classical field first,and then introducing the ideas of quantum mechanics to derive the basic concepts and tools of quantum field theory.This teaching method is natural for students who have already mastered classical field theory,but for students who only master quantum mechanics,it often produces a huge sense of jumping.Therefore,we propose a new teaching method for quantum field theory,which directly starts from multibody quantum mechanics,introduces the Lagrange quantities of field theory into the regular quantization system,and derives the corresponding Hamiltonian quantities,in order to help students better understand the basic concepts and tools of quantum field theory.
作者
庞锦毅
PANG Jinyi(School of Science,University of Shanghai for Science and Technology,Shanghai 200093)
出处
《科教导刊》
2023年第10期127-129,共3页
The Guide Of Science & Education
关键词
量子场论
教学
研究
quantum field theory
teaching
research
