Abstract
Using the Feynman-Dyson diagram technique, we study nonlinear polariton-polariton scattering in a two-dimensional micropillar-based optical superlattice with hexagonal symmetry. We demonstrate that both the emerging polariton chirality and the loop Feynman diagrams up to infinite order should be strictly accounted for in the evaluation of the self-energy of the system. Further, we explicitly show that in such a design the time of polariton scattering towards the Dirac points can be drastically decreased which can be used, for instance, in engineering novel classes of polariton lasers with substantially reduced thresholds.
Original language | English |
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Article number | 105301 |
Number of pages | 5 |
Journal | Journal of physics: Condensed matter |
Volume | 28 |
Issue number | 10 |
DOIs | |
Publication status | Published - 16 Mar 2016 |
MoE publication type | A1 Journal article-refereed |
Keywords
- exciton polaritons
- linear dispersion
- Feynman-Dyson technique
- Dirac point
- graphene materials