The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

The concept of topological energy bands and their manifestations have been demonstrated
in condensed matter systems as a fantastic paradigm toward unprecedented physical …

Topological phononic crystals can manipulate elastic waves that propagate in solids without
being backscattered, and could be used to develop integrated acousto-electronic systems …

When electrons moving in two dimensions (2D) are subjected to a strong uniform magnetic
field, they form flat bands called Landau levels (LLs). LLs can also arise from …

Non-Hermitian skin effect (NHSE) is an intrinsic non-Hermitian phenomenon where an
extensive number of eigenmodes, called skin modes, are localized at the boundary of a …

Topological mechanical metamaterials unlock confined and robust elastic wave control.
Recent breakthroughs have precipitated the development of 3D topological metamaterials …

Continuum Landau modes—predicted recently in a non-Hermitian Dirac Hamiltonian under
a uniform magnetic field—are continuous bound states with no counterparts in Hermitian …

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 …

Topology is the branch of mathematics studying the properties of an object that are
preserved under continuous deformations. Quite remarkably, the powerful theoretical tools …

The synthetic gauge field, offering an excellent platform to explore some fascinating
magnetic-like phenomena, has attracted extensive research. Here, we report the realization …