Higher vortexability: zero field realization of higher Landau levels

M Fujimoto, DE Parker, J Dong, E Khalaf… - arxiv preprint arxiv …, 2024 - arxiv.org
The rise of moir\'{e} materials has led to experimental realizations of integer and fractional
Chern insulators in small or vanishing magnetic fields. At the same time, a set of minimal …

Fractional Chern insulator candidate on a twisted bilayer checkerboard lattice

JZ Ma, RZ Huang, GY Zhu, JY Chen, DX Yao - Physical Review B, 2024 - APS
We investigate a fractional Chern insulator (FCI) candidate arising from moiré bands with
higher Chern number C= 2 on a magic-angle twisted bilayer checkerboard lattice …

Compressible quantum matter with vanishing Drude weight

A Abouelkomsan, N Paul, A Stern, L Fu - arxiv preprint arxiv:2403.14747, 2024 - arxiv.org
We explore the possibility of quantum states of matter that are compressible but have
vanishing DC conductivity in the absence of disorder. We show that the composite Fermi …