Fluctuating Nature of Light-Enhanced d-Wave Superconductivity: A Time-Dependent Variational Non-Gaussian Exact Diagonalization Study

doi:10.1103/PhysRevX.11.041028

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	Fluctuating Nature of Light-Enhanced d-Wave Superconductivity: A Time-Dependent Variational Non-Gaussian Exact Diagonalization Study
	Wang, Yao ; Shi, Tao 2,3; Chen, Cheng-Chien
刊名	PHYSICAL REVIEW X
	2021
卷号	11 期号:4 页码:41028
关键词	DENSITY-WAVE SCATTERING
ISSN号	2160-3308
DOI	10.1103/PhysRevX.11.041028
英文摘要	Engineering quantum phases using light is a novel route to designing functional materials, where lightinduced superconductivity is a successful example. Although this phenomenon has been realized experimentally, especially for the high-Tc cuprates, the underlying mechanism remains mysterious. Using the recently developed variational non-Gaussian exact diagonalization method, we investigate a particular type of photoenhanced superconductivity by suppressing a competing charge order in a strongly correlated electron-electron and electron-phonon system. We find that the d-wave superconductivity pairing correlation can be enhanced by a pulsed laser, consistent with recent experiments based on gap characterizations. However, we also find that the pairing correlation length is heavily suppressed by the pump pulse, indicating that light-enhanced superconductivity may be of fluctuating nature. Our findings also imply a general behavior of nonequilibrium states with competing orders, beyond the description of a mean-field framework.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27614]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100049, Peoples R China 2.Clemson Univ, Dept Phys & Astron, Clemson, SC 29631 USA 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Alabama Birmingham, Dept Phys, Birmingham, AL 35294 USA
推荐引用方式 GB/T 7714	Wang, Yao,Shi, Tao,Chen, Cheng-Chien. Fluctuating Nature of Light-Enhanced d-Wave Superconductivity: A Time-Dependent Variational Non-Gaussian Exact Diagonalization Study[J]. PHYSICAL REVIEW X,2021,11(4):41028.
APA	Wang, Yao,Shi, Tao,&Chen, Cheng-Chien.(2021).Fluctuating Nature of Light-Enhanced d-Wave Superconductivity: A Time-Dependent Variational Non-Gaussian Exact Diagonalization Study.PHYSICAL REVIEW X,11(4),41028.
MLA	Wang, Yao,et al."Fluctuating Nature of Light-Enhanced d-Wave Superconductivity: A Time-Dependent Variational Non-Gaussian Exact Diagonalization Study".PHYSICAL REVIEW X 11.4(2021):41028.