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重力对^87Rb冷原子四极磁阱装载的影响
  • ISSN号：1007-6654
  • 期刊名称：《量子光学学报》
  • 时间：0
  • 分类：O436[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构：山西大学光电研究所,量子光学与光量子器件国家重点实验室,山西太原030006
  • 相关基金：国家973计划（2011CB921601）; 国家基金项目（11234008,61121064）
作者： 王亚琼, 陈良超, 王鹏军, 张靖
关键词： 超冷原子, 重力, 磁阱, RB, ultracold atoms, gravity, magnetic trap, Rb
中文摘要：

文章研究了重力作用下对磁光阱中^87Rb原子进行偏振梯度冷却后重新四极磁阱俘获的影响。研究了竖直放置四极线圈和水平放置四极线圈两种情形下,重力对原子偏振梯度冷却后四极磁阱重新俘获过程的作用,通过原子自由飞行吸收成像,观测到了原子的振荡。分析计算了^87Rb原子｜2,2〉态补偿重力时所需的磁场梯度B′,探究了磁场参数对于振荡现象的影响,从而选择了水平放置磁场线圈的方法,提高了原子偏振梯度冷却后四极磁阱的装载效率。

英文摘要：

We studied the influence of gravity on ~（87）Rb atoms recaptured by the quadrupole magnetic trap after Sisyphus cooling.When the quadrupole magnetic field coils were placed vertically and horizontally respectively,the gravity＇s effect was investigated on recapturing atoms with the magnetic quadrupole trap.We have observed the oscillation of ~（87）Rb atoms in the quadrupole magnetic trap by time-of-flight and absorption image.The magnetic field distribution in both cases was calculated and presented that ~（87）Rb atoms＇ oscillation came from the offset of center of the magnetic field due to gravity.After calculating and analyzing the magnetic field gradient B＇to balance the gravity for｜2,2〉state of ~（87）Rb atom,we explored~（87）Rb atoms oscillation,and chose the configuration with placing the magnetic field coils horizontally to increase the recapture efficiency of quadrupole magnetic trap.

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期刊信息
  • 《量子光学学报》
  • 中国科技核心期刊
  • 主管单位:山西省科学技术协会
  • 主办单位:山西省物理学会
  • 主编：彭堃墀
  • 地址：山西坞城路92号太原山西大学光电研究所
  • 邮编：030006
  • 邮箱：qo@sxu.edu.cn
  • 电话：0351-7018917 7018853
  • 国际标准刊号：ISSN：1007-6654
  • 国内统一刊号：ISSN：14-1187/O4
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:1022