Physicists are always riveted in predicting how a physical system behaves as a function of
time. We begin this review article by understanding various formalisms to study the …

Exceptional point and spectral singularity are two types of singularity that are unique to non-
Hermitian systems. Here, we report the high-order spectral singularity as a high-order pole …

Giant enhancement of vacuum friction in spinning YIG nanospheres - IOPscience Skip to
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Hyperbolic propagation offers exciting opportunities in nanophotonics, from subdiffraction
imaging to enhanced local density of states. This transport regime is typically induced by …

Using time as an additional design parameter in electromagnetism, photonics, and wave
physics is attracting considerable research interest, motivated by the possibility to explore …

Optical forces acting on particles-controlled by the intensity, polarization and direction of
optical beams-have become an important tool in manipulation, sorting and analysis of …

We study a non-Hermitian electronic dimers system based on an imaginary resistor (Z) in a
(N+ 2) level atomic multipod configuration. Non-Hermitian systems depend on a gain/loss …

The mathematical notion of spectral singularity admits a description in terms of purely
outgoing solutions of a corresponding linear wave equation. This leads to a nonlinear …

We analyze the spectrum and normal-mode representation of general quadratic bosonic
forms H not necessarily Hermitian. It is shown that, in the one-dimensional case, such forms …

We investigate linear and nonlinear spectral singularities in the transverse electric and
transverse magnetic modes of a slab laser consisting of an active planar slab sandwiched …