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Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases

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Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases. / Pickup, Lucy; Sigurdsson, Helgi; Ruostekoski, Janne et al.
In: Nature Communications, Vol. 11, 4431, 04.09.2020.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Pickup, L, Sigurdsson, H, Ruostekoski, J & Lagoudakis, P 2020, 'Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases', Nature Communications, vol. 11, 4431. https://doi.org/10.1038/s41467-020-18213-1

APA

Pickup, L., Sigurdsson, H., Ruostekoski, J., & Lagoudakis, P. (2020). Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases. Nature Communications, 11, Article 4431. https://doi.org/10.1038/s41467-020-18213-1

Vancouver

Pickup L, Sigurdsson H, Ruostekoski J, Lagoudakis P. Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases. Nature Communications. 2020 Sept 4;11:4431. doi: 10.1038/s41467-020-18213-1

Author

Pickup, Lucy ; Sigurdsson, Helgi ; Ruostekoski, Janne et al. / Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases. In: Nature Communications. 2020 ; Vol. 11.

Bibtex

@article{6d5a969b29b544f7a4f8d2fff68c5e2d,
title = "Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases",
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.",
author = "Lucy Pickup and Helgi Sigurdsson and Janne Ruostekoski and Pavlos Lagoudakis",
year = "2020",
month = sep,
day = "4",
doi = "10.1038/s41467-020-18213-1",
language = "English",
volume = "11",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases

AU - Pickup, Lucy

AU - Sigurdsson, Helgi

AU - Ruostekoski, Janne

AU - Lagoudakis, Pavlos

PY - 2020/9/4

Y1 - 2020/9/4

N2 - 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.

AB - 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.

U2 - 10.1038/s41467-020-18213-1

DO - 10.1038/s41467-020-18213-1

M3 - Journal article

VL - 11

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 4431

ER -