# Non-Hermitian corner skin effect in a two-dimensional photonic crystal

https://mdr.nims.go.jp/datasets/a791a3f0-f735-4f7e-819b-702115a1aef5

## File

- [main.pdf](https://mdr.nims.go.jp/filesets/9ad3ae89-4fbc-47c1-9005-600a325a6897/download) ([Detail](https://mdr.nims.go.jp/filesets/9ad3ae89-4fbc-47c1-9005-600a325a6897.md))

## Id

a791a3f0-f735-4f7e-819b-702115a1aef5

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-06-29T00:44:09.164621Z

## Updated at

2026-06-29T01:01:31.951124Z

## Published at

2026-06-29T03:29:15.125916Z

## Doi

https://doi.org/10.48505/nims.6375

## First published url

https://doi.org/10.1103/gvcy-vsvd

## Date published

2026-05-01

## Recorded date published

2026-5

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Non-Hermitian corner skin effect in a two-dimensional photonic crystal
  title_type: original
  lang: en

## Description

- description: We numerically study topological effects of electromagnetic (EM) waves
    in a two-dimensional non-Hermitian photonic crystal composed of lossy magneto-optical
    materials. In this system, not only the EM wave functions but also the complex
    eigenfrequencies exhibit nontrivial topological properties. We demonstrate that
    the non-Hermitian skin effect, protected by point gaps in the complex eigenfrequency
    spectrum, emerges at both the edges and corners of truncated structures. This
    phenomenon has no counterpart in Hermitian systems. In addition, we identify non-Hermitian
    topological edge states originating from the nontrivial topology of the bulk bands.
    While most previous studies of non-Hermitian topology have focused on tight-binding
    models, our work addresses a continuous photonic system, providing a more realistic
    platform and offering a concrete route toward experimental realization of non-Hermitian
    effects.
  description_type: abstract
  lang: und

## Creator

- name: Huyen Thanh Phan
  role: author
  orcid: https://orcid.org/0000-0002-1031-6127
- name: Katsunori Wakabayashi
  role: author
  orcid: https://orcid.org/0000-0002-9147-9939

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Non-Hermitian photonic crystal
  schema: not_defined
- subject: Corner skin effect
  schema: not_defined
- subject: Point-gap topology
  schema: not_defined
- subject: Topological edge states
  schema: not_defined
- subject: Complex eigenfrequency spectrum
  schema: not_defined

## Rights

- description: "©2026 American Physical Society"
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Physical Review B
  issn: '24699950'
  volume: '113'
  issue: '20'
  article_number: '205403'

## Conference



## Related item



## Funding

- identifier: JPMJCR19T1
  funder_name: Japan Science and Technology Corporation
- identifier: '2401203'
  funder_name: Sumitomo Foundation
- identifier: JP25K01609
  funder_name: Japan Society for the Promotion of Science
- identifier: JP22H05473
  funder_name: Japan Society for the Promotion of Science
- identifier: JP21H01019
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 9ad3ae89-4fbc-47c1-9005-600a325a6897
  filename: main.pdf
  content_type: application/pdf
  size: 3798529
  md5: da7286870d8e805b44d148c399493234

## Thumbnail

fileset_id: 9ad3ae89-4fbc-47c1-9005-600a325a6897
filename: main.pdf