Topological materials are quantum materials with nontrivial ground-state entanglement that
are irremovable so long as certain rules, like invariance under symmetries and the existence …

Non-Hermiticity enriches topological phases beyond the existing Hermitian framework.
Whereas their unusual features with no Hermitian counterparts were extensively explored, a …

We study the bulk-boundary correspondence for topological crystalline phases, where the
crystalline symmetry is an order-two (anti) symmetry, unitary or antiunitary. We obtain a …

We theoretically study superconductivity in UTe 2, which is a recently discovered strong
candidate for an odd-parity spin-triplet superconductor. Theoretical studies for this …

We study the bulk and boundary properties of fragile topological insulators (TIs) protected by
inversion symmetry, mostly focusing on the class A of the Altland-Zirnbauer classification …

While the symmetry-based diagnosis of topological insulators and semimetals has enabled
large-scale discovery of topological materials candidates, the extension of these …

What is" topological" about topological quantum states? How many types of topological
quantum phases are there? What is a zero-energy Majorana mode, how can it be realized in …

We study a two-dimensional tight-binding model of a topological crystalline insulator (TCI)
protected by rotation symmetry. The model is built by stacking two Chern insulators with …

Topological superconductors are exotic phases of matter featuring robust surface states that
could be leveraged for topological quantum computation. A useful guiding principle for the …

While free fermion topological crystalline insulators have been largely classified, the
analogous problem in the strongly interacting case has been only partially solved, and the …