GSTDTAP  > 地球科学
DOI10.1038/s41586-018-0007-4
Hypersonic Bose-Einstein condensates in accelerator rings
Pandey, Saurabh1,2; Mas, Hector1,3; Drougakis, Giannis1,2; Thekkeppatt, Premjith1; Bolpasi, Vasiliki1; Vasilakis, Georgios1; Poulios, Konstantinos1,4; von Klitzing, Wolf1
2019-06-13
发表期刊NATURE
ISSN0028-0836
EISSN1476-4687
出版年2019
卷号570期号:7760页码:205-+
文章类型Article
语种英语
国家Greece; England
英文摘要

Some of the most sensitive and precise measurements-for example, of inertia(1), gravity(2) and rotation(3)-are based on matter-wave interferometry with free-falling atomic clouds. To achieve very high sensitivities, the interrogation time has to be very long, and consequently the experimental apparatus needs to be very tall (in some cases reaching ten or even one hundred metres) or the experiments must be performed in microgravity in space(4-7). Cancelling gravitational acceleration (for example, in atom-tronic circuits(8,9) and matter-wave guides(10)) is expected to result in compact devices with extended interrogation times and therefore increased sensitivity. Here we demonstrate smooth and controllable matter-wave guides by transporting Bose-Einstein condensates (BECs) over macroscopic distances. We use a neutral-atom accelerator ring to bring BECs to very high speeds (16 times their sound velocity) and transport them in a magnetic matter-wave guide for 15 centimetres while fully preserving their internal coherence. The resulting high angular momentum of more than 40,000h per atom (where h is the reduced Planck constant) gives access to the higher Landau levels of quantum Hall states, and the hypersonic velocities achieved, combined with our ability to control potentials with picokelvin precision, will facilitate the study of superfluidity and give rise to tunnelling and a large range of transport regimes of ultracold atoms(11-13). Coherent matter-wave guides are expected to enable interaction times of several seconds in highly compact devices and lead to portable guided-atom interferometers for applications such as inertial navigation and gravity mapping.


领域地球科学 ; 气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000471297600045
WOS关键词FIELD
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/202882
专题地球科学
资源环境科学
气候变化
作者单位1.Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion, Greece;
2.Univ Crete, Dept Mat Sci & Technol, Iraklion, Greece;
3.Univ Crete, Dept Phys, Iraklion, Greece;
4.Univ Nottingham, Sch Phys & Astron, Nottingham, England
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GB/T 7714
Pandey, Saurabh,Mas, Hector,Drougakis, Giannis,et al. Hypersonic Bose-Einstein condensates in accelerator rings[J]. NATURE,2019,570(7760):205-+.
APA Pandey, Saurabh.,Mas, Hector.,Drougakis, Giannis.,Thekkeppatt, Premjith.,Bolpasi, Vasiliki.,...&von Klitzing, Wolf.(2019).Hypersonic Bose-Einstein condensates in accelerator rings.NATURE,570(7760),205-+.
MLA Pandey, Saurabh,et al."Hypersonic Bose-Einstein condensates in accelerator rings".NATURE 570.7760(2019):205-+.
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