Exceptional points are spectral singularities in open quantum and wave systems that exhibit
a strong spectral response to perturbations. This feature can be exploited for a new …

The notion of non-Hermitian optics and photonics rooted in quantum mechanics and
photonic systems has recently attracted considerable attention ushering in tremendous …

Tight bosonic analogs of free-fermionic symmetry-protected topological phases, and their
associated edge-localized excitations, have long evaded the grasp of condensed-matter …

Models based on non-Hermitian Hamiltonians can exhibit a range of surprising and
potentially useful phenomena. Physical realizations typically involve couplings to sources of …

Optical microcavities offer a promising platform for highly efficient light–matter interactions.
Recently, the combination of microresonators and 2D materials in the nanoscale has further …

Exceptional points are degeneracies in the spectrum of non-Hermitian open systems where
at least two eigenfrequencies and simultaneously the corresponding eigenstates of the …

Exceptional bound (EB) states represent an unique new class of robust bound states
protected by the defectiveness of non-Hermitian exceptional points. Conceptually distinct …

Full wavefront control by photonic components requires that the spatial phase modulation on
an incoming optical beam ranges from 0 to 2π. Because of their radiative coupling to the …

The observation of topological edge states (TESs) revolutionized our understanding of
scattering and propagation of electromagnetic (EM) waves. Supported by topological …

Optical microresonators have attracted intense interests in highly sensitive molecular
detection and optical precision measurement in the past decades. In particular, the …