8 papers
Hybrid-order nonlinear topological phases
Yu-Peng Ma, Ming-Jian Gao, Jun-Hong An
The bulk-boundary correspondence (BBC), which relates topological invariants to boundary modes, is well understood for linear systems but remains an open question in the presence o…
Topological Phases in Non-Hermitian Nonlinear-Eigenvalue Systems
Yu-Peng Ma, Ming-Jian Gao, Jun-Hong An
The discovery of topological phases has ushered in a new era of condensed matter physics and revealed a variety of natural and artificial materials. They obey the bulk-boundary cor…
Breakdown of the symmetry constraint in a Floquet topological insulator
Ming-Jian Gao, Jun-Hong An
A topological insulator is regarded as an ideal candidate for information storage and high-speed lossless electrical transmission devices due to robust topological protected bounda…
Multiple topological corner states in the continuum of extended kagome lattice
Shun-Peng Zhang, Ming-Jian Gao, Wei Jia +1
The kagome lattice is renowned for its exotic electronic properties, such as flat bands, Dirac points, and Van Hove singularities. These features have provided a fertile ground for…
Topological semimetal with coexisting nodal points and nodal lines
Bing-Bing Luo, Ming-Jian Gao, Jun-Hong An
Featuring exotic quantum transport and surface states, topological semimetals can be classified into nodal-point, nodal-line, and nodal-surface semimetals according to the degenera…
Converting -Symmetric Topological Classes by Floquet Engineering
Ming-Jian Gao, Jun-Hong An
Going beyond the conventional classification rule of Altland-Zirnbauer symmetry classes, symmetric topological phases are classified by or . The interconversion…