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DOI | 10.1126/science.aan3029 |
A cryofuge for cold-collision experiments with slow polar molecules | |
Wu, Xing1,2; Gantner, Thomas1; Koller, Manuel1; Zeppenfeld, Martin1; Chervenkov, Sotir1; Rempe, Gerhard1 | |
2017-11-03 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 358期号:6363页码:645-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA |
英文摘要 | Ultracold molecules represent a fascinating research frontier in physics and chemistry, but it has proven challenging to prepare dense samples at low velocities. Here, we present a solution to this goal by means of a nonconventional approach dubbed cryofuge. It uses centrifugal force to bring cryogenically cooled molecules to kinetic energies below 1 K x k(B) in the laboratory frame, where kB is the Boltzmann constant, with corresponding fluxes exceeding 1010 per second at velocities below 20 meters per second. By attaining densities higher than 10(9) per cubic centimeter and interaction times longer than 25 milliseconds in samples of fluoromethane as well as deuterated ammonia, we observed cold dipolar collisions between molecules and determined their collision cross sections. |
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:000414240500036 |
WOS关键词 | ULTRACOLD MOLECULES ; GAS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/197249 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany; 2.Yale Univ, Dept Phys, New Haven, CT 06520 USA |
推荐引用方式 GB/T 7714 | Wu, Xing,Gantner, Thomas,Koller, Manuel,et al. A cryofuge for cold-collision experiments with slow polar molecules[J]. SCIENCE,2017,358(6363):645-+. |
APA | Wu, Xing,Gantner, Thomas,Koller, Manuel,Zeppenfeld, Martin,Chervenkov, Sotir,&Rempe, Gerhard.(2017).A cryofuge for cold-collision experiments with slow polar molecules.SCIENCE,358(6363),645-+. |
MLA | Wu, Xing,et al."A cryofuge for cold-collision experiments with slow polar molecules".SCIENCE 358.6363(2017):645-+. |
条目包含的文件 | 条目无相关文件。 |
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