期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 28, 期 10, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/28/10/105301
关键词
exciton polaritons; linear dispersion; Feynman-Dyson technique; Dirac point; graphene materials
资金
- Government of the Russian Federation [074-U01]
- Dynasty Foundation
- Academy of Finland through its Centre of Excellence Program [251748]
- Australian Research Council [DE160100167]
- [RFBR 15-02-08949]
- Australian Research Council [DE160100167] Funding Source: Australian Research Council
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.
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