3 papers
cond-mat.str-el2026
Controlled Theory of Skyrmion Chern Bands in Moiré Quantum Materials: Quantum Geometry and Collective Dynamics
Yi-Hsien Du
Recent experiments in moiré quantum materials exhibit quantized Hall states without an external magnetic field, motivating continuum mechanisms based on smooth moiré-periodic pse…
cond-mat.str-el2025
Chiral Graviton Theory of Fractional Quantum Hall States
Yi-Hsien Du
Recent polarized Raman scattering experiments indicate that fractional quantum Hall systems host a chiral spin-2 neutral collective mode, the long-wavelength limit of the magnetoro…
cond-mat.str-el2024
Quantum vortex lattice: Lifshitz duality, topological defects and multipole symmetries
Yi-Hsien Du, Ho Tat Lam, Leo Radzihovsky
We study an effective field theory of a vortex lattice in a two-dimensional neutral rotating superfluid. Utilizing particle-vortex dualities, we explore its formulation in terms of…