Compact gap solitons of exciton-polariton condensates with spin-orbit coupling in a one-dimensional flatband lattice

Ting-Wei Chen^1*, Szu-Cheng Cheng²

¹半導體材料科學碩士班, 國立屏東大學, 屏東市, Taiwan
²光電物理學系, 中國文化大學, 台北市, Taiwan

* Presenter:Ting-Wei Chen, email:twchen@mail.nptu.edu.tw

We propose a way to excite compact gap solitons in a flatband of the incoherently-pumped exciton-polariton condensate under a one-dimensional periodic potential lattice. The combined effects of spin-orbit coupling and periodic potential depth on the flatband structures are investigated. Moreover, how the compact gap solitons are localized and extended inside only a fraction of a single lattice site will be studied with varying pump strengths, pump spot-sizes as well as energy detuning.

Keywords: exciton-polariton, spin-orbit coupling, flatband