Non-Hermitian photonics and topological photonics, as new research fields in optics, have
attracted much attention in recent years, accompanying by a great deal of new physical …

Non-Hermitian band structures have gained considerable attention due to the novel
phenomena not present in their Hermitian counterparts and their connection to various …

The non-Bloch band theory can describe energy bands in a one-dimensional (1D) non-
Hermitian system. On the other hand, whether the non-Bloch band theory can be extended …

Useful in the enhancement of light-matter interaction, localization of light is at the heart of
photonics studies. Different approaches have been proposed to localize light, including …

The non-Hermitian skin effect (NHSE), which involves an extensive number of bulk modes
collapsing to open boundaries as skin modes, unveils a variety of unprecedented …

The parity-time (PT) symmetry of a non-Hermitian Hamiltonian leads to real (complex)
energy spectrum when the non-Hermiticity is below (above) a threshold. Recently, it has …

We study the skin effect in a one-dimensional system of finitely many subwavelength
resonators with a non-Hermitian imaginary gauge potential. Using Toeplitz matrix theory, we …

It has recently been shown that the non-Hermitian skin effect can be suppressed by
magnetic fields. In this work, using a two-dimensional tight-binding lattice, we demonstrate …

Exceptional points are complex branching singularities of non-Hermitian bands that have
lately attracted considerable interest, particularly in non-Hermitian photonics. In this article …

One of the most pronounced non-Hermitian phenomena is the non-Hermitian skin effect,
which refers to the exponential localization of bulk eigenstates near the boundaries of non …