Year: 2020
Type: article
Abstract: In the past few years, concepts from non‐Hermitian (NH) physics, originally developed within the context of quantum field theories, have been successfully deployed over a wide range of physical settings where wave dynamics are known to play a key role. In optics, a special class of NH Hamiltonians – which respects parity‐time symmetry – has been intensely pursued along several fronts. What makes this family of systems so intriguing is the prospect of phase transitions and NH singularities that can in turn lead to a plethora of counterintuitive phenomena. Quite recently, these ideas have permeated several other fields of science and technology in a quest to achieve new behaviors and functionalities in nonconservative environments that would have otherwise been impossible in standard Hermitian arrangements. Here, we provide an overview of recent advancements in these emerging fields, with emphasis on photonic NH platforms, exceptional point dynamics, and the very promising interplay between non‐Hermiticity and topological physics.
Source: Nanophotonics
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,995
Funders: National Science Foundation, United States-Israel Binational Science Foundation, Defense Advanced Research Projects Agency, Office of Naval Research, Division of Materials Research, Division of Chemical, Bioengineering, Environmental, and Transport Systems, Division of Electrical, Communications and Cyber Systems, Air Force Office of Scientific Research, Army Research Office
Awards: G155652732, G1688418379, G199197024, G1999224694, EAGER: Fundamental Considerations in Using Non-Hermitian Microscale Resonant Optical Structures for Rotation Sensing, G2210792608, G2238336498, G2314421656, MRSEC: Center for Nanoscale Science, CAREER: Novel Photonic Structures Using Non-Hermitian Exceptional Points, G3048516157, G4204426802, CCRI: ENS: Collaborative Research: ns-3 Network Simulation for Next-Generation Wireless, High-speed and minimally photo-damaging STED microscopy using nanolaser arrays, G5063957569, G5703086870, G6098521345, CAREER: Novel Photonic Structures Using Non-Hermitian Exceptional Points, G6131476864, G6472141375, G657448715, G6838567687, G6877437200, G695392223, G7228083853, G7452299184, G7565014002, G76562418, G8289379664, EAGER: Fundamental Considerations in Using Non-Hermitian Microscale Resonant Optical Structures for Rotation Sensing, G8876996369
OpenAlex ID: W3092087256