Spin-orbit coupling and nonlinear modes of the polariton condensate in a harmonic trap

Hidetsugu Sakaguchi, Boris A. Malomed, Dmitry V. Skryabin

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We consider a model of the exciton-polariton condensate based on a system of two Gross-Pitaevskii equations coupled by the second-order differential operator, which represents the spin-orbit coupling in the system. Also included are the linear gain, effective diffusion, nonlinear loss, and the standard harmonic-oscillator trapping potential, as well as the Zeeman splitting. By means of combined analytical and numerical methods, we identify stable two-dimensional modes supported by the nonlinear system. In the absence of the Zeeman splitting, these are mixed modes, which combine zero and nonzero vorticities in each of the two spinor components, and vortex-antivortex complexes. We have also found a range of parameters where the mixed-mode and vortex-antivortex states coexist and are stable. Sufficiently strong Zeeman splitting creates stable semi-vortex states, with vorticities 0 in one component and 2 in the other.

Original languageEnglish
Article number085003
JournalNew Journal of Physics
Volume19
Issue number8
DOIs
StatePublished - 16 Aug 2017

Funding

FundersFunder number
United States-Israel Binational Science Foundation2015616
Israel Science Foundation1286/17
Government Council on Grants, Russian Federation074-U01

    Keywords

    • condensates
    • polaritons
    • vortices

    Fingerprint

    Dive into the research topics of 'Spin-orbit coupling and nonlinear modes of the polariton condensate in a harmonic trap'. Together they form a unique fingerprint.

    Cite this