The effect of a finite two-photon detuning on the quantum tricriticality and phase transitions in a spin-orbit coupled Bose gas
文献类型：期刊论文
| 作者 | Chen, L; Xu, XR; Kang, S |
| 刊名 | MODERN PHYSICS LETTERS B
 |
| 出版日期 | 2018-10-30 |
| 卷号 | 32期号:30页码:- |
| ISSN号 | 0217-9849 |
| 关键词 | Spin-orbital coupling quantum tricriticality phase transitions |
| DOI | 10.1142/S0217984918503694 |
| 英文摘要 | In the current experiments, realizing the synthetic spin-orbital coupling (SOC) with ultracold atoms, a finite two-photon detuning (TPD) is present. However, in most relevant theoretical studies so far, the TPD has been assumed as zero. Here, we investigate how a finite detuning affects the ground phase diagram in a Bose gas with equal-weight Rashba and Dresselhuas SOC. We show that the single-particle dispersion relation in the presence of a finite TPD can be significantly modified compared to the case with zero detuning, which gives rise to experimentally observable effects on quantum tricriticality and phase transitions. In particular, the zero-momentum phase that can arise for a zero TPD becomes unstable against a finite TPD and disappears. Our results are relevant to the current cold atom experiments using the Raman laser-induced gauge field. |
| 学科主题 | Physics, Applied ; Physics, Condensed Matter ; Physics, Mathematical |
| 语种 | 英语 |
| WOS记录号 | WOS:000448838000009 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79882]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Zunyi Normal Univ, Sch Phys & Elect Sci, Zunyi 563006, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Liaoning, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, L,Xu, XR,Kang, S. The effect of a finite two-photon detuning on the quantum tricriticality and phase transitions in a spin-orbit coupled Bose gas[J]. MODERN PHYSICS LETTERS B,2018,32(30):-. |
| APA | Chen, L,Xu, XR,&Kang, S.(2018).The effect of a finite two-photon detuning on the quantum tricriticality and phase transitions in a spin-orbit coupled Bose gas.MODERN PHYSICS LETTERS B,32(30),-. |
| MLA | Chen, L,et al."The effect of a finite two-photon detuning on the quantum tricriticality and phase transitions in a spin-orbit coupled Bose gas".MODERN PHYSICS LETTERS B 32.30(2018):-. |
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来源：金属研究所
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