Topological enhancement of exciton-polariton coherence with non-Hermitian morphing

The non-Hermitian skin effect (NHSE) has been intensely investigated over the past few years and has unveiled new topological phases, which have no counterparts in Hermitian systems. Here we consider the hybridization between the NHSE in an exciton-polariton waveguide and a localized defect mode....

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Main Authors: Bao, Ruiqi, Xu, Huawen, Verstraelen, Wouter, Liew, Timothy Chi Hin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/173698
http://arxiv.org/abs/2306.00957v1
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1736982024-02-26T15:35:34Z Topological enhancement of exciton-polariton coherence with non-Hermitian morphing Bao, Ruiqi Xu, Huawen Verstraelen, Wouter Liew, Timothy Chi Hin School of Physical and Mathematical Sciences Physics Exciton-polariton Hermitians The non-Hermitian skin effect (NHSE) has been intensely investigated over the past few years and has unveiled new topological phases, which have no counterparts in Hermitian systems. Here we consider the hybridization between the NHSE in an exciton-polariton waveguide and a localized defect mode. By tuning the non-Hermiticity, we find that the resulting ground-state of the system is both spatially extended and energetically separated from other modes in the system. When polariton lasing occurs in the system, we find an enhanced spatial coherence compared to regular waveguides, which is robust in the presence of disorder. Ministry of Education (MOE) Published version The work was supported by the Ministry of Education, Singapore (Grant No. MOE-T2EP50121-0020). 2024-02-23T01:45:26Z 2024-02-23T01:45:26Z 2023 Journal Article Bao, R., Xu, H., Verstraelen, W. & Liew, T. C. H. (2023). Topological enhancement of exciton-polariton coherence with non-Hermitian morphing. Physical Review B, 108(23), 235305-. https://dx.doi.org/10.1103/PhysRevB.108.235305 2469-9950 https://hdl.handle.net/10356/173698 10.1103/PhysRevB.108.235305 2-s2.0-85179557666 http://arxiv.org/abs/2306.00957v1 23 108 235305 en MOE-T2EP50121-0020 Physical Review B © 2023 American Physical Society. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1103/PhysRevB.108.235305. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Physics
Exciton-polariton
Hermitians
spellingShingle Physics
Exciton-polariton
Hermitians
Bao, Ruiqi
Xu, Huawen
Verstraelen, Wouter
Liew, Timothy Chi Hin
Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
description The non-Hermitian skin effect (NHSE) has been intensely investigated over the past few years and has unveiled new topological phases, which have no counterparts in Hermitian systems. Here we consider the hybridization between the NHSE in an exciton-polariton waveguide and a localized defect mode. By tuning the non-Hermiticity, we find that the resulting ground-state of the system is both spatially extended and energetically separated from other modes in the system. When polariton lasing occurs in the system, we find an enhanced spatial coherence compared to regular waveguides, which is robust in the presence of disorder.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Bao, Ruiqi
Xu, Huawen
Verstraelen, Wouter
Liew, Timothy Chi Hin
format Article
author Bao, Ruiqi
Xu, Huawen
Verstraelen, Wouter
Liew, Timothy Chi Hin
author_sort Bao, Ruiqi
title Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
title_short Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
title_full Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
title_fullStr Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
title_full_unstemmed Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
title_sort topological enhancement of exciton-polariton coherence with non-hermitian morphing
publishDate 2024
url https://hdl.handle.net/10356/173698
http://arxiv.org/abs/2306.00957v1
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