中文版 | English
Title

Light-induced topological superconductivity in transition metal dichalcogenide monolayers

Author
Publication Years
2022-10-01
DOI
Source Title
ISSN
2469-9950
EISSN
2469-9969
Volume106Issue:13
Abstract
Monolayer transition metal dichalcogenides (TMDs) host deeply bound excitons interacting with itinerant electrons, and as such they represent an exciting new quantum many-body Bose-Fermi mixture. Here, we demonstrate that electrons interacting with a Bose-Einstein condensate (BEC) of exciton-polaritons can realize a two-dimensional topological px+ipy superconductor. Using strong coupling Eliashberg theory, we show that this is caused by an attractive interaction mediated by the BEC, which overcompensates the repulsive Coulomb interaction between the electrons. The hybrid light-matter nature of the BEC is crucial for achieving this, since it can be used to reduce retardation effects and increase the mediated interaction in regimes important for pairing. We finally show how the great flexibility of TMDs allows one to tune the critical temperature of the topological superconducting phase to be within experimental reach.
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Others
WOS Research Area
Materials Science ; Physics
WOS Subject
Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS Accession No
WOS:000918198800004
Publisher
Scopus EID
2-s2.0-85140715725
Data Source
Scopus
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/407129
DepartmentDepartment of Physics
量子科学与工程研究院
Affiliation
1.Center for Complex Quantum Systems,Department of Physics and Astronomy,Aarhus University,Aarhus C,Ny Munkegade,DK-8000,Denmark
2.Department of Applied Physics,Aalto University,Aalto,P.O.Box 15100,00076,Finland
3.Departamento de Física Química,Instituto de Física,Universidad Nacional Autónoma de México,Ciudad de México,Apartado Postal 20-364,C.P. 01000,Mexico
4.Shenzhen Institute for Quantum Science and Engineering,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
Recommended Citation
GB/T 7714
Julku,Aleksi,Kinnunen,Jami J.,Camacho-Guardian,Arturo,et al. Light-induced topological superconductivity in transition metal dichalcogenide monolayers[J]. Physical Review B,2022,106(13).
APA
Julku,Aleksi,Kinnunen,Jami J.,Camacho-Guardian,Arturo,&Bruun,Georg M..(2022).Light-induced topological superconductivity in transition metal dichalcogenide monolayers.Physical Review B,106(13).
MLA
Julku,Aleksi,et al."Light-induced topological superconductivity in transition metal dichalcogenide monolayers".Physical Review B 106.13(2022).
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