Skyrmions with higher topological charges in exciton-polariton condensates

Szu-Cheng Cheng^1*, Ting-Wei Chen², Shih-Da Jheng¹

¹Department of Optoelectric Physics, Chinese Culture University, Taipei, Taiwan
²Department of Electrophysics, National Chiayi University, Chiayi city, Taiwan

* Presenter:Szu-Cheng Cheng, email:sccheng@faculty.pccu.edu.tw

We investigate the creation of skyrmions in a homogeneous spinor exciton-polariton condensate. The spinor texture and topological charge of a skyrmion can be controlled via changing the pump polarization and strength. We find that different kinds of skyrmions can be created with suitable excitation conditions. Néel-type half-skyrmion, Bloch-type skyrmion and skyrmion with a higher topological charge could exist in spinor exciton-polariton condensates. The stability of these skyrmions is checked by the linear stability analysis.

Keywords: half-skyrmion, skyrmion with a higher topological charge, stability