钠原子气体中的玻色-爱因斯坦凝聚

K. B. Davis, M. Mewes, M. R. Andrews, N. V. Druten, D. Durfee, D. M. Kurn, W. Ketterle
{"title":"钠原子气体中的玻色-爱因斯坦凝聚","authors":"K. B. Davis, M. Mewes, M. R. Andrews, N. V. Druten, D. Durfee, D. M. Kurn, W. Ketterle","doi":"10.1109/EQEC.1996.561567","DOIUrl":null,"url":null,"abstract":"We have observed Bose-Einstein condensation of sodium atoms. The atoms were trapped in a novel trap that employed both magnetic and optical forces. Evaporative cooling increased the phase-space density by 6 orders of magnitude within seven seconds. Condensates contained up to 5 3 105 atoms at densities exceeding 1014 cm23. The striking signature of Bose condensation was the sudden appearance of a bimodal velocity distribution below the critical temperature of , 2 mK. The distribution consisted of an isotropic thermal distribution and an elliptical core attributed to the expansion of a dense condensate.","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Bose-Einstein Condensation in a Gas of Sodium Atoms\",\"authors\":\"K. B. Davis, M. Mewes, M. R. Andrews, N. V. Druten, D. Durfee, D. M. Kurn, W. Ketterle\",\"doi\":\"10.1109/EQEC.1996.561567\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We have observed Bose-Einstein condensation of sodium atoms. The atoms were trapped in a novel trap that employed both magnetic and optical forces. Evaporative cooling increased the phase-space density by 6 orders of magnitude within seven seconds. Condensates contained up to 5 3 105 atoms at densities exceeding 1014 cm23. The striking signature of Bose condensation was the sudden appearance of a bimodal velocity distribution below the critical temperature of , 2 mK. The distribution consisted of an isotropic thermal distribution and an elliptical core attributed to the expansion of a dense condensate.\",\"PeriodicalId\":11780,\"journal\":{\"name\":\"EQEC'96. 1996 European Quantum Electronic Conference\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"EQEC'96. 1996 European Quantum Electronic Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EQEC.1996.561567\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"EQEC'96. 1996 European Quantum Electronic Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EQEC.1996.561567","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

我们已经观察到钠原子的玻色-爱因斯坦凝聚。原子被困在一个利用磁力和光力的新型陷阱中。蒸发冷却使相空间密度在7秒内提高了6个数量级。冷凝物的原子密度超过1014cm23,可达53105个。玻色凝聚的显著特征是在临界温度2 mK以下突然出现双峰速度分布。该分布由各向同性热分布和归因于致密凝聚膨胀的椭圆核心组成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Bose-Einstein Condensation in a Gas of Sodium Atoms
We have observed Bose-Einstein condensation of sodium atoms. The atoms were trapped in a novel trap that employed both magnetic and optical forces. Evaporative cooling increased the phase-space density by 6 orders of magnitude within seven seconds. Condensates contained up to 5 3 105 atoms at densities exceeding 1014 cm23. The striking signature of Bose condensation was the sudden appearance of a bimodal velocity distribution below the critical temperature of , 2 mK. The distribution consisted of an isotropic thermal distribution and an elliptical core attributed to the expansion of a dense condensate.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Recent Progress of Nonlinear Short-Pulse Tunable VUV and XUV Generation Nanostructures be Laser Direct Etching of Silicon Analysis Of Optical Pattern Formation By Symmetry Autocorrelation Functions Multiple Ionization and Coulomb Explosion of Mercury Clusters in Femtoscecond Laser Fields Atoms in Cavities Quantum Entanglement and Quantum Computing
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1