南方科技大学知识苑(SUSTech KC): Pair density wave facilitated by Bloch quantum geometry in nearly flat band multiorbital superconductors

题名	Pair density wave facilitated by Bloch quantum geometry in nearly flat band multiorbital superconductors
作者	Chen, Weipeng1,2,3 ; Huang, Wen1,2,3
通讯作者	Huang, Wen
发表日期	2023-08-01
DOI	10.1007/s11433-023-2122-4
发表期刊	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 影响因子和分区
ISSN	1674-7348
EISSN	1869-1927
卷号	66 期号:8
摘要	Bloch electrons in multiorbital systems carry quantum geometric information characteristic of their wavevector-dependent interorbital mixing. The geometric nature impacts electromagnetic responses, and this effect carries over to the superconducting state, which receives a geometric contribution to the superfluid weight. In this paper, we show that this contribution could become negative under certain appropriate circumstances. This may facilitate the stabilization of Cooper pairings with real space phase modulation, i.e., the pair density wave order, as we demonstrate through two-orbital model Bogoliubov de-Gennes mean-field calculations. The quantum geometric effect therefore constitutes an intrinsic mechanism for the formation of such a novel phase of matter in the absence of external magnetic field.
关键词	superconductivity quantum geometry pair density wave superfluid weight FFLO
相关链接	[来源记录]
收录类别	SCI
语种	英语
学校署名	第一 ; 通讯
资助项目	National Natural Science Foundation of China[11904155] ; Guangdong Provincial Key Laboratory[2019B121203002] ; Guangdong Science and Technology Department[2022A1515011948] ; Shenzhen Science and Technology Program[KQTD20200820113010023]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:001029222300003
出版者	SCIENCE PRESS
来源库	Web of Science
引用统计	被引频次[WOS]：7
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/553233
专题	量子科学与工程研究院
作者单位	1.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China 2.Int Quantum Acad, Shenzhen 518048, Peoples R China 3.Southern Univ Sci & Technol, Guangdong Prov Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China
第一作者单位	量子科学与工程研究院
通讯作者单位	量子科学与工程研究院
第一作者的第一单位	量子科学与工程研究院
推荐引用方式 GB/T 7714	Chen, Weipeng,Huang, Wen. Pair density wave facilitated by Bloch quantum geometry in nearly flat band multiorbital superconductors[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2023,66(8).
APA	Chen, Weipeng,&Huang, Wen.(2023).Pair density wave facilitated by Bloch quantum geometry in nearly flat band multiorbital superconductors.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,66(8).
MLA	Chen, Weipeng,et al."Pair density wave facilitated by Bloch quantum geometry in nearly flat band multiorbital superconductors".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 66.8(2023).