48 citations · 85 across the 9 of their papers we have counts for
9 papers
Non-abelian bosonization of fermion symmetry-protected topological states
Yen-Ta Huang, Dung-Hai Lee
Applying the results of Ref.[1], we carry out the non-abelian bosonization for a class of free fermion symmetry-protected topological states (SPTs). The resulting boson theories ar…
The electromagnetic duality and the 3+1D O(6) non-linear sigma model with a level-1 Wess-Zumino-Witten term
Yen-Ta Huang, Dung-Hai Lee
We show that in (3+1)-D space-time dimensions, the O(6) non-linear sigma model, with a level-1 Wess-Zumino-Witten term, exhibits the electromagnetic duality. If we name the six com…
Competing orders, the Wess-Zumino-Witten term, and spin liquids
Yen-Ta Huang, Dung-Hai Lee
In this paper, we demonstrate that in frustrated magnets when several conventional (i.e., symmetry-breaking) orders compete, and are "intertwined" by a Wess-Zumino-Witten (WZW) ter…
Fractional Vortices, Gauge Theory, and the Confinement-Deconfinement Transition
Zhi-Qiang Gao, Yen-Ta Huang, Dung-Hai Lee
In this paper we discuss the classical 3D XY model whose nearest-neighbor interaction is a mixture of (ferromagnetic) and (nematic). This model is…
Non-abelian bosonization in two and three spatial dimensions and applications
Yen-Ta Huang, Dung-Hai Lee
In this paper, we generalize Witten's non-abelian bosonization in -D to two and three spatial dimensions. Our theory applies to fermions with relativistic dispersion. The bo…
The "non-regularizability" of gapless free fermion Hamiltonian protected by on-site symmetries
Yen-Ta Huang, Lokman Tsui, Dung-Hai Lee
The non-regularizability of free fermion field theories, which is the root of various quantum anomalies, plays a central role in particle physics and modern condensed matter physic…
A Holographic Theory for the Phase Transitions Between Fermionic Symmetry-protected Topological States
Lokman Tsui, Yen-Ta Huang, Dung-Hai Lee
In an earlier work we developed a holographic theory for the phase transition between bosonic symmetry-protected topological (SPT) states. This paper is a continuation of it. Here…
Does the existence of Majorana zero mode in superconducting vortices imply the superconductivity is topologically non-trivial?
Lokman Tsui, Zi-Xiang Li, Yen-Ta Huang +2
We show that the presence of Majorana zero modes (2D), and chiral-dispersing Majorana modes (3D), in the vortex cores of superconductors are neither sufficient nor necessary condit…
The phase transitions between bosonic topological phases in 1+1 D, and a constraint on the central charge for the critical points between bosonic symmetry protected topological phases
Lokman Tsui, Yen-Ta Huang, Hong-Chen Jiang +1
The study of continuous phase transitions triggered by spontaneous symmetry breaking has brought revolutionary ideas to physics. Recently, through the discovery of symmetry protect…