IMR OpenIR
Ground state properties of a two-dimensional Fermi superfluid with anisotropic spin-orbit coupling
Zhou, Kezhao; Zhang, Zhidong
2019-05-01
Source PublicationJOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN0022-3697
Volume128Pages:207-210
AbstractIn this study, we performed a theoretical investigation of the ground state properties of a two-dimensional ultra cold Fermi superfluid with anisotropic spin-orbit coupling (SOC). In the absence of the Zeeman field, the system evolved from a weak coupling BCS regime to a strongly interacting BEC regime (BCS-BEC crossover) with increases in either the two-particle interaction strength or the SOC parameters. We focused on the behaviors of the pairing parameter and density of states (DOS) when the anisotropic parameter of the SOC increased. Surprisingly, we discovered that the gap parameter decreased as the anisotropic parameters increased, but the DOS at the Fermi surface exhibited non-monotonic behavior as a function of the anisotropic parameter. In the presence of the Zeeman field, we considered a particular type of topological phase transition by obtaining the analytical result for the topological invariant and we related this directly to the quantum phase transition with a sudden change in the ground state wave-function. The effects of higher partial wave pairing terms on this topological phase transition were also considered in this study.
KeywordBCS-BEC crossover Spin-orbit coupling Ultra-cold atom
Indexed BySCI
Language英语
WOS IDWOS:000472693100021
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81114
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhou, Kezhao,Zhang, Zhidong. Ground state properties of a two-dimensional Fermi superfluid with anisotropic spin-orbit coupling[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2019,128:207-210.
APA Zhou, Kezhao,&Zhang, Zhidong.(2019).Ground state properties of a two-dimensional Fermi superfluid with anisotropic spin-orbit coupling.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,128,207-210.
MLA Zhou, Kezhao,et al."Ground state properties of a two-dimensional Fermi superfluid with anisotropic spin-orbit coupling".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 128(2019):207-210.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhou, Kezhao]'s Articles
[Zhang, Zhidong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou, Kezhao]'s Articles
[Zhang, Zhidong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou, Kezhao]'s Articles
[Zhang, Zhidong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.