Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/137285
Title: | Coupling between exciton-polariton corner modes through edge states | Authors: | Banerjee, R. Mandal, S. Liew, T. C. H. |
Keywords: | Science::Physics | Issue Date: | 2020 | Source: | Banerjee, R., Mandal, S., & Liew, T. C. H. (2020). Coupling between exciton-polariton corner modes through edge states. Physical Review Letters, 124(6). doi:10.1103/physrevlett.124.063901 | Journal: | Physical Review Letters | Abstract: | Recently realized higher order topological insulators have taken a surge of interest among the theoretical and experimental condensed matter community. The two dimensional second order topological insulators give rise to zero dimensional localized corner modes that reside within the band gap of the system along with edge modes that inhabit a band edge next to bulk modes. Thanks to the topological nature, information can be trapped at the corners of these systems which will be unhampered even in the presence of disorder. Being localized at the corners, the exchange of information among the corner states is an issue. Here we show that the nonlinearity in an exciton polariton system can allow the coupling between the different corners through the edge states based on optical parametric scattering, realizing a system of multiple connectible topological modes. | URI: | https://hdl.handle.net/10356/137285 | ISSN: | 1079-7114 | DOI: | 10.1103/physrevlett.124.063901 | Schools: | School of Physical and Mathematical Sciences | Rights: | © 2020 American Physical Society (APS). All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society (APS). | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
Files in This Item:
File | Description | Size | Format | |
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CORNER_MODE.pdf | 2.77 MB | Adobe PDF | View/Open |
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