Radio-frequency spectroscopic measurement for pairing gap in an ultracold Fermi gas
文献类型：期刊论文
| 作者 | Jiang KaiJun1,2; Luo Hua1; Li Kai1; Zhang DongFang1; Gao TianYou1; Peng ShiGuo1 |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2013-03-01 |
| 卷号 | 56期号:3页码:581-587 |
| 关键词 | degenerate Fermi gas Feshbach resonance Bose Einstein condensate superfluid |
| 英文摘要 | The study of ultracold Fermi gases has exploded a variety of experimental and theoretical research since the achievement of degenerate quantum gases in the lab, which expands the research range over atomic physics, condensed matter physics, astrophysics and particle physics. Using the Feshbach resonance, one can tune the attractive two-body interaction from weak to strong and thereby make a smooth crossover from the BCS superfluid of cooper pairs to the Bose Einstein condensate of bound molecules. In this crossover regime, the pairing effect plays a significant role in interpreting the interaction mechanism. Whenever the localized or delocalized pairing occurs at sufficiently low temperature, the single-particle energy will shift with respect to free atoms, due to the two-body or many-body interaction. Measuring the pairing gap can improve the understanding of the thermodynamics and hydrodynamics of the phase transition from the pseudogap to the superfluid, which will make an analogue to the high-temperature superconductivity in condensed matter. In this work, we will give a brief introduction to a novel radio-frequency (RF) spectroscopic measurement for pairing gap in an ultracold Fermi gas, which is currently widely used on the ultracold atomic table in the lab. In different interaction regimes of the BEC-BCS crossover, ultracold atoms are excited with a RF pulse and the characteristic behavior can be extracted from the spectrum. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | PSEUDOGAP |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000314912300017 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/995]  |
| 专题 | 武汉物理与数学研究所_原子分子光物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang KaiJun,Luo Hua,Li Kai,et al. Radio-frequency spectroscopic measurement for pairing gap in an ultracold Fermi gas[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56(3):581-587. |
| APA | Jiang KaiJun,Luo Hua,Li Kai,Zhang DongFang,Gao TianYou,&Peng ShiGuo.(2013).Radio-frequency spectroscopic measurement for pairing gap in an ultracold Fermi gas.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(3),581-587. |
| MLA | Jiang KaiJun,et al."Radio-frequency spectroscopic measurement for pairing gap in an ultracold Fermi gas".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.3(2013):581-587. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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