Non-hermitian physics

Y Ashida, Z Gong, M Ueda - Advances in Physics, 2020 - Taylor & Francis
A review is given on the foundations and applications of non-Hermitian classical and
quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra …

Exceptional topology of non-Hermitian systems

EJ Bergholtz, JC Budich, FK Kunst - Reviews of Modern Physics, 2021 - APS
The current understanding of the role of topology in non-Hermitian (NH) systems and its far-
reaching physical consequences observable in a range of dissipative settings are reviewed …

Non-Hermitian photonics based on parity–time symmetry

L Feng, R El-Ganainy, L Ge - Nature Photonics, 2017 - nature.com
Nearly one century after the birth of quantum mechanics, parity–time symmetry is
revolutionizing and extending quantum theories to include a unique family of non-Hermitian …

Engineered disorder in photonics

S Yu, CW Qiu, Y Chong, S Torquato, N Park - Nature Reviews Materials, 2021 - nature.com
Disorder, which qualitatively describes some measure of irregularities in spatial patterns, is
ubiquitous in many-body systems, equilibrium and non-equilibrium states of matter, network …

Nonlinear switching and solitons in PT‐symmetric photonic systems

SV Suchkov, AA Sukhorukov, J Huang… - Laser & Photonics …, 2016 - Wiley Online Library
One of the challenges of the modern photonics is to develop all‐optical devices enabling
increased speed and energy efficiency for transmitting and processing information on an …

Higher-dimensional supersymmetric microlaser arrays

X Qiao, B Midya, Z Gao, Z Zhang, H Zhao, T Wu, J Yim… - Science, 2021 - science.org
The nonlinear scaling of complexity with the increased number of components in integrated
photonics is a major obstacle impeding large-scale, phase-locked laser arrays. Here, we …

Supersymmetric laser arrays

MP Hokmabadi, NS Nye, R El-Ganainy… - Science, 2019 - science.org
Scaling up the radiance of coupled laser arrays has been a long-standing challenge in
photonics. In this study, we demonstrate that notions from supersymmetry—a theoretical …

Hierarchical construction of higher-order exceptional points

Q Zhong, J Kou, ŞK Özdemir, R El-Ganainy - Physical review letters, 2020 - APS
The realization of higher-order exceptional points (HOEPs) can lead to orders of magnitude
enhancement in light-matter interactions beyond the current fundamental limits …

Realization of high-dimensional frequency crystals in electro-optic microcombs

Y Hu, C Reimer, A Shams-Ansari, M Zhang, M Loncar - Optica, 2020 - opg.optica.org
Crystals are ubiquitous in nature and are at the heart of material research, solid-state
science, and quantum physics. Unfortunately, the controllability of solid-state crystals is …

Supersymmetric mode converters

M Heinrich, MA Miri, S Stützer, R El-Ganainy… - Nature …, 2014 - nature.com
Originally developed in the context of quantum field theory, the concept of supersymmetry
can be used to systematically design a new class of optical structures. In this work, we …