Fluctuating Nature of Light-Enhanced d-Wave Superconductivity: A Time-Dependent Variational Non-Gaussian Exact Diagonalization Study
文献类型：期刊论文
| 作者 | Wang, Yao; Shi, Tao2,3 ; Chen, Cheng-Chien
|
| 刊名 | PHYSICAL REVIEW X
 |
| 出版日期 | 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 |
| 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. |
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来源：理论物理研究所
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