3 papers
cond-mat.mes-hall2026
Biorthogonal scattering and generalized unitarity in non-Hermitian systems
Jung-Wan Ryu, Henning Schomerus, Hee Chul Park
We investigate the two-port scattering process in non-Hermitian dimer models via quantum measurements using external leads. We focus on two exemplary dimer models that preserve par…
cond-mat.mes-hall2024
Engineering high Chern number insulators
Sungjong Woo, Seungbum Woo, Jung-Wan Ryu +1
The concept of Chern insulators is one of the most important buliding block of topological physics, enabling the quantum Hall effect without external magnetic fields. The construct…
physics.optics2024
Spontaneous emission decay and excitation in photonic time crystals
Jagang Park, Kyungmin Lee, Ruo-Yang Zhang +10
Over the last few decades, the predominant strategies for controlling spontaneous emission have involved tailoring the spatial surroundings of quantum emitters or atoms to create r…