物理与工程2025，Vol.35Issue(1)：10-15,6.
第54届国际物理奥林匹克竞赛理论试题2介绍与解答
INTRODUCTION AND SOLUTION TO QUESTION 2 OF THE THEORETICAL EXAMINATION OF THE 54TH INTERNATIONAL PHYSICS OLYMPIAD
蒋硕 1安宇 1郭旭波 1张留碗 1阮东1
作者信息
摘要
Abstract
This paper introduces the second question of the theoretical examination of the 54th International Physics Olympiad.The question is set against the background of ion trapping and atomic cooling,discussing the fundamental models of these two important applications and guiding the derivation of some significant conclusions.The question is divided into two parts:the first part focuses on the Paul Trap model in ion trapping,with an emphasis on the dynamic equilibrium achieved by charged particles under the modulation of a high-frequency electric field,which leads to their confinement.The second part involves the use of atomic ab-sorption of light,utilizing the Doppler effect to create differential absorption of light on either side of the atom,resulting in momentum transfer and subsequent deceleration and cooling of the atom.The theoretical model presented in the question is clear,the guided inferences are reasonable,and it requires a certain level of computational and approximation skills.关键词
国际物理奥林匹克竞赛/库伦定律/高斯定理/动态稳定平衡/激光冷却/多普勒效应Key words
International Physics Olympiad/Coulomb's law/Gauss's law/dynamic stable equilibrium/laser cooling/Doppler effect引用本文复制引用
蒋硕,安宇,郭旭波,张留碗,阮东..第54届国际物理奥林匹克竞赛理论试题2介绍与解答[J].物理与工程,2025,35(1):10-15,6.
