Non-Hermitian Topological Sensors

We introduce and study a novel class of sensors whose sensitivity grows exponentially with the size of the device. Remarkably, this drastic enhancement does not rely on any fine-tuning, but is found to be a stable phenomenon immune to local perturbations. Specifically, the physical mechanism behind...

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Bibliographic Details
Published in:Physical review letters 2020-10, Vol.125 (18), p.180403, Article 180403
Main Authors: Budich, Jan Carl, Bergholtz, Emil J.
Format: Article
Language:English
Subjects:
Boundary conditions
Metamaterials
Sensitivity
Sensors
Topology
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