外部磁场调控的中子与一维腔壁间的动态Casimir-Polder力  

The dynamic Casimir-Polder force between the neutron controlled by an external magnetic field and the wall of a one-dimensional cavity

作　　者：钱嘉琪 龙玉梅[1] 杨慧[2] 高峰 巴合提古丽·阿斯里别克 郑泰玉[1] QIAiN Jia-qi;LONG Yu-mei;YAiNG Hui;GAO Feng;BAHETIGULI · Asilibieke;ZHENG Tai-yu(School of Physics. Northeast Normal University,Chanchun 130024,China;Faculty of Science,Changchun University of Science and Technology,Changchun 130022,China;College of Physics and Electronic Information.Baicheng Normal University.Baicheng 137000,China;College of Electronic Information Engineering, Yili Normal University, Yining 835000,China)

机构地区：[1]东北师范大学物理学院,吉林长春130024 [2]长春理工大学理学部,吉林长春130022 [3]白城师范学院物理与电子信息学院,吉林白城137000 [4]伊犁师范大学电子与信息工程分院,新疆伊宁835000

出　　处：《东北师大学报（自然科学版）》2019年第2期86-90,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11175044)

摘　　要：应用Ujihara模式理论研究绝对零度下受外部磁场调控的中子与腔壁之间的动态Casimir-Polder力,得到了力随时间变化的解析表达式,并进行了数值分析.结果表明:力随着外部磁场的增大而增大,近似成正比关系;力随微腔尺寸的增大而减小,且减小的速度逐渐减慢;力随相对介电常数的增大而增大,且增大的速度逐渐减慢.该结果为实验中测得动态Casimir-Polder力提供了理论参考.This paper applies the Ujihara model theory to study the dynamic Casimir-Polder force between neutron and optical cavity wall controlled by external magnetic field at zero temperature, the analytical expression of the force with time is obtained and numerical analysis is carried out. The results show the force increases with the increase of the external magnetic field, which is approximately proportional;The force decreases as the size of the microcavity increases,and the decreasing speed gradually decreases;The force increases as the relative dielectric constant increases, and the increasing speed gradually decreases. The results provide a theoretical reference for measuring dynamic Casimir-Polder forces in experiments.

关 键 词：中子 磁场调控 动态Casimir-Polder力 

分 类 号：O413.2[理学—理论物理]