Controlling exceptional points with light

Banerjee, A and Narayan, A (2020) Controlling exceptional points with light. In: Physical Review B, 102 (20).

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Abstract

We propose and show that application of light leads to an intriguing platform for controlling exceptional points in non-Hermitian topological systems. We demonstrate our proposal using three different non-Hermitian systems - nodal line semimetals, semi-Dirac semimetals, and Dirac semimetals - and show that using illumination with light one can engineer the positions and stability of exceptional points. We illustrate the topological properties of these models and map out their light-driven topological phase transitions. © 2020 American Physical Society.

Item Type:	Journal Article
Publication:	Physical Review B
Publisher:	American Physical Society
Additional Information:	The copyright for this article belongs to the Author(S).
Keywords:	Exceptional points; Hermitians; Light driven; Nodal line; Topological phase; Topological properties; Topological systems, Topology
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	10 Jan 2023 09:06
Last Modified:	10 Jan 2023 09:06
URI:	https://eprints.iisc.ac.in/id/eprint/79010

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