3 papers
cond-mat.str-el2024
Connection between Free-Fermion and Interacting Crystalline Symmetry-Protected Topological Phases
Chen-Shen Lee, Ken Shiozaki, Chang-Tse Hsieh
We present a framework for investigating the effects of interactions on crystalline symmetry-protected topological (SPT) phases. Within this framework, one can establish a direct c…
cond-mat.str-el2024
Crystalline-equivalent topological phases of many-body fermionic systems in one dimension
Chen-Shen Lee, Ken Shiozaki, Chang-Tse Hsieh
We explore one-dimensional fermionic symmetry-protected topological (SPT) phases related by the crystalline equivalence principle. In particular, we study charge-conserving many-bo…
cond-mat.mes-hall2023
A linear algebra-based approach to understanding the relation between the winding number and zero-energy edge states
Chen-Shen Lee
The one-to-one relation between the winding number and the number of robust zero-energy edge states, known as bulk-boundary correspondence, is a celebrated feature of 1d systems wi…