摘要
利用量子弱测量技术,可使很弱的相互作用引起显著的观测效应,在观测极弱物理效应、量子参量估计、量子态层析等方面发挥重要作用,已成为当前量子测量领域的研究热点。本文以斯特恩-盖拉赫(Stern-Gerlach)实验为切入点,利用大学物理范畴的量子力学知识阐释了量子弱测量的物理图像,并进一步介绍了该领域的前沿进展。本文有助于加深物理教师对量子弱测量这一前沿问题的理解,帮助学生建立清晰的物理图像。在教学过程中引入前沿科技,也有助于激发学生主动探索和进一步研究的兴趣和热情。本文旨在基础物理原理和高新尖技术之间搭建桥梁,有益于大学物理教学拓宽思路、提升品位。
Using quantum weak measurement technology,the very weak interaction can cause significant observation effects.It plays important roles in observing the extreme weak physical effect,quantum parameter estimation,quantum state tomography and so on.It has become a research hotspot in the field of quantum measurement.Based on the Stern-Gerlach experiment as the starting point,this paper explains the physical image of quantum weak measurement by using the knowledge of elementary quantum mechanics,and further introduces the frontier development of related fields.This paper can deepen physics teachers’understanding of quantum weak measurement,which is a frontier physical problem,and also help students to establish a clear physical image.The introduction of cutting-edge technology in the teaching process also helps to stimulate students’interest and enthusiasm for active exploration and further research.This paper aims to build a bridge between basic physics principles and high-tech,which is beneficial for college physics teachers to broaden scientific thoughts and enhance academic taste.
作者
吴春旺
张杰
吴伟
张婷
WU Chunwang;ZHANG Jie;WU Wei;ZHANG Ting(Department of Physics,College of Liberal Arts and Sciences,National University of Defense Technology,Changsha,Hunan 410073)
出处
《物理与工程》
2022年第6期121-126,共6页
Physics and Engineering
基金
国家重点研发计划项目(2016YFA0301903)
国家自然科学基金(12004430,11904402,61632021,12174447,12174448)
关键词
量子弱测量
斯特恩-盖拉赫实验
量子测量
quantum weak measurement
Stern-Gerlach experiment
quantum measurement
