#1
#1 out of 1
18h ago
Exceptional deficiency of non-Hermitian systems - Nature Physics
- Researchers report a generalization of exceptional points, introducing exceptional deficiency where entire eigenspaces coalesce with identical, large dimensions.
- The study shows exceptional deficiency can cause or suppress non-Hermitian skin effects, breaking traditional bulk–edge relations.
- Experiments with active mechanical lattices validate the ED phenomenon and its impact on localization and propagation.
- The ED framework suggests a route to broadband sensors with high sensitivity across a wide bandwidth.
- Data and code accompanying the article are available on Zenodo and from corresponding authors.
- The work situates exceptional deficiency within the broader non-Hermitian physics landscape, citing extensive prior literature.
- Authors from Hong Kong Baptist University and Kyoto University collaborated on theory and experiments.
- The concept may influence practical control of localization and propagation in engineered systems.
- The ED mechanism could impact sensing, modal control, and lasing technologies.
- The research includes several figures and data sources, including Extended Data and Zenodo datasets.
Vote 0