Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases
arXiv:2001.07616 · doi:10.1038/s41467-020-18213-1
Abstract
Synthetic crystal lattices provide ideal environments for simulating and exploring the band structure of solid-state materials in clean and controlled experimental settings. Physical realisations have, so far, dominantly focused on implementing irreversible patterning of the system, or interference techniques such as optical lattices of cold atoms. Here, we realise reprogrammable synthetic band-structure engineering in an all optical exciton-polariton lattice. We demonstrate polariton condensation into excited states of linear one-dimensional lattices, periodic rings, dimerised non-trivial topological phases, and defect modes utilising malleable optically imprinted non-Hermitian potential landscapes. The stable excited nature of the condensate lattice with strong interactions between sites results in an actively tuneable non-Hermitian analogue of the Su-Schrieffer-Heeger system.
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Cited by in corpus (39)
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- Engineering spatial coherence in lattices of polariton condensates
- Quantum fluids of light in all-optical scatterer lattices
- From the topological spin-Hall effect to the non-Hermitian skin effect in an elliptical micropillar chain
- Entanglement Spectrum Crossings Reveal non-Hermitian Dynamical Topology
- Reconfigurable quantum fluid molecules of bound states in the continuum
- Interaction induced bi-skin effect in an exciton-polariton system
- Negative-mass exciton polaritons induced by dissipative light-matter coupling in an atomically thin semiconductor
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- Fractional Quantum Zeno Effect Emerging from Non-Hermitian Physics
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- Grating-based microcavity with independent control of resonance energy and linewidth for non-Hermitian polariton system
- Polaronic polariton quasiparticles in a dark excitonic medium
- Directional planar antennae in polariton condensates
- Reservoir optics with exciton-polariton condensates
- Theory of nonlinear excitonic response of hybrid organic perovskites in the regime of strong light-matter coupling
- Non-Hermitian synthetic lattices with light-matter coupling
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- Topological phases of spinless -orbital fermions in zigzag optical lattices
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- Discrete chiral ballistic polariton laser
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