Anti-chiral edge states in an exciton polariton strip

Abstract

We present a scheme to obtain anti-chiral edge states in an exciton-polariton honeycomb lattice with strip geometry, where the modes corresponding to both edges propagate in the same direction. Under resonant pumping the effect of a polariton condensate with nonzero velocity in one linear polarization is predicted to tilt the dispersion of polaritons in the other, which results in an energy shift between two Dirac cones and the otherwise flat edge states become tilted. Our simulations show that due to the spatial separation from the bulk modes the edge modes are robust against disorder.

6 pages, 5 figures

References in corpus (8)

• Topological Photonics
• Quantum fluids of light
• Time-reversal symmetry breaking in circuit-QED based photon lattices
• Topological Polaritons
• Polariton $\mathbb{Z}$ Topological Insulator
• Topological Polaritons and Excitons in Garden Variety Systems
• Propagation and amplification dynamics of 1D polariton condensates
• Spontaneous and Superfluid Chiral Edge States in Exciton-Polariton Condensates

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