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DOI | 10.1126/science.aan5950 |
High-temperature pairing in a strongly interacting two-dimensional Fermi gas | |
Murthy, Puneet A.1; Neidig, Mathias1; Klemt, Ralf1; Bayha, Luca1; Boettcher, Igor2; Enss, Tilman3; Holten, Marvin1; Zuern, Gerhard1; Preiss, Philipp M.1; Jochim, Selim1 | |
2018-01-26 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 359期号:6374页码:452-455 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Canada |
英文摘要 | The nature of the normal phase of strongly correlated fermionic systems is an outstanding question in quantum many-body physics. We used spatially resolved radio-frequency spectroscopy to measure pairing energy of fermions across a wide range of temperatures and interaction strengths in a two-dimensional gas of ultracold fermionic atoms. We observed many-body pairing at temperatures far above the critical temperature for superfluidity. In the strongly interacting regime, the pairing energy in the normal phase considerably exceeds the intrinsic two-body binding energy of the system and shows a clear dependence on local density. This implies that pairing in this regime is driven by many-body correlations, rather than two-body physics. Our findings show that pairing correlations in strongly interacting two-dimensional fermionic systems are remarkably robust against thermal fluctuations. |
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:000423283200045 |
WOS关键词 | SUPERCONDUCTIVITY ; PSEUDOGAP |
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/197855 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Heidelberg Univ, Inst Phys, Heidelberg, Germany; 2.Simon Fraser Univ, Dept Phys, Burnaby, BC, Canada; 3.Heidelberg Univ, Inst Theoret Phys, Heidelberg, Germany |
推荐引用方式 GB/T 7714 | Murthy, Puneet A.,Neidig, Mathias,Klemt, Ralf,et al. High-temperature pairing in a strongly interacting two-dimensional Fermi gas[J]. SCIENCE,2018,359(6374):452-455. |
APA | Murthy, Puneet A..,Neidig, Mathias.,Klemt, Ralf.,Bayha, Luca.,Boettcher, Igor.,...&Jochim, Selim.(2018).High-temperature pairing in a strongly interacting two-dimensional Fermi gas.SCIENCE,359(6374),452-455. |
MLA | Murthy, Puneet A.,et al."High-temperature pairing in a strongly interacting two-dimensional Fermi gas".SCIENCE 359.6374(2018):452-455. |
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