Renormalized dispersion of elementary excitations in spinor polariton condensates

I. A. Shelykh*, Yu G. Rubo, A. V. Kavokin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We analyse the polarization of spinor polariton condensates and corresponding dispersions of elementary excitations. We have considered the effects of magnetic field induced splitting in circular polarizations and residual splitting in linear polarizations in the ground state provided by the cavity asymmetry. We show that anisotropic polariton-polariton interactions fully compensate the Zeeman splitting in circular polarizations below the critical magnetic field, thus leading to the spin-Meissner effect for the polariton condensates. We also analyzed the effect of polariton-polariton interactions on the stability of the gap in linear polarizations characteristic for anisotropic microcavities. It was shown that in realistic systems this gap increases with concentration of the particles, thus contributing to the stability of the pinning of linear polarization of photoemission in semiconductor microcavities for pump intensities above the stimulation threshold.

Original languageEnglish
Pages (from-to)313-320
Number of pages8
JournalSuperlattices and Microstructures
Issue number5-6
Publication statusPublished - May 2007

Bibliographical note

Funding Information:
The authors thank T. Liew for useful discussions. This work has been supported by the Marie-Curie RTN “Clermont-2”. YGR acknowledges the support from the grant IN107007 of DGAPA-UNAM.

Other keywords

  • Bose-Einstein condensation
  • Microcavity
  • Polaritons
  • Pseudospin


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