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超冷原子：型号套件量子物质Ultracold atoms: Model kits for quantum matter |
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| 课程网址: | http://videolectures.net/dnevi_grimm_ultracold/ |
| 主讲教师: | Rudolf Grimm |
| 开课单位: | 因斯布鲁克大学 |
| 开课时间: | 2012-04-05 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Atomic samples with temperatures in the nanokelvin range, prepared by advanced methods of laser and evaporative cooling, offer unique opportunities to study a large variety of phenomena in complex quantum systems. The important degrees of freedom and parameters can be controlled in a way, not accessible to traditional quantum many-body systems. Both bosonic and fermionic atoms are available to create Bose-Einstein condensates, degenerate Fermi gases, and even quantum-degenerate mixtures. Optical traps allow the experimentalists to realize macroscopic traps, artificial crystals (“optical lattices”), and low-dimensional environments. The interaction can be magnetically tuned exploiting a resonance phenomenon, called “Feshbach resonance”. Based on this rich tool-box, many intriguing model systems can be experimentally studied with strong connections to different branches of physics. After a general introduction into the field, I will present a few examples based on research in Innsbruck, including new developments on strongly interacting Fermi gases and few-body “Efimov” states in Bose gases. |
| 关 键 词: | 物理学; 固态物理学; 原子 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-06-13：邬启凡(课程编辑志愿者) |
| 阅读次数: | 60 |