Medium effects close to s- and p-wave Feshbach resonances in atomic Fermi gases
文献类型：期刊论文
| 作者 | Liao, RY ; Quader, KF |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2012 |
| 卷号 | 86期号:1 |
| 关键词 | QUASI-PARTICLE INTERACTION BOSE-EINSTEIN CONDENSATE LIQUID-HE-3 SUPERCONDUCTIVITY SCATTERING SYSTEMS TRANSITION MODEL |
| ISSN号 | 1050-2947 |
| 通讯作者 | Liao, RY: Fujian Normal Univ, Coll Phys & Energy, Fuzhou 350108, Peoples R China. |
| 中文摘要 | Many-body effects may influence properties, such as scattering parameters, nature of pairing, etc., close to a Feshbach resonance in the fermion BEC-BCS crossover problem. We study effects such as these using a tractable crossing-symmetric approach. This method allow us to include quantum fluctuations, such as density, current, spin, spin-current, and the higher-order fluctuations in a self-consistent fashion. The underlying fermion interaction is reflected in the "driving" term. We perform calculations here on both Bose-Einstein condensate (BEC) and BCS sides and taking the driving term to be finite range and of arbitrary strength. These are related to two-body singlet and triplet scattering parameters and can be connected with experimental s- and p-wave Feshbach resonances. We include the l = 0 density and spin fluctuations as well as l = 1 current and spin-current fluctuations. We calculate renormalized scattering amplitudes, pairing amplitudes, nature of pairing, etc., on both the BEC and BCS sides. We then compare our results qualitatively with experiments. |
| 收录类别 | SCI |
| 资助信息 | NSFC [10934010, 60978019]; NKBRSFC [2009CB930701, 2010CB922904, 2011CB921502, 2012CB821300]; NSFC-RGC [11061160490, 1386-N-HKU748/10] |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41890]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liao, RY,Quader, KF. Medium effects close to s- and p-wave Feshbach resonances in atomic Fermi gases[J]. PHYSICAL REVIEW A,2012,86(1). |
| APA | Liao, RY,&Quader, KF.(2012).Medium effects close to s- and p-wave Feshbach resonances in atomic Fermi gases.PHYSICAL REVIEW A,86(1). |
| MLA | Liao, RY,et al."Medium effects close to s- and p-wave Feshbach resonances in atomic Fermi gases".PHYSICAL REVIEW A 86.1(2012). |
入库方式： OAI收割
来源：物理研究所
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