32 citations · 154 across the 19 of their papers we have counts for
7 papers · 1 filter
Corner Charge Fluctuations in Higher Dimensions
Xiao-Chuan Wu, Pok Man Tam, Xuyang Liang +4
Measuring charge fluctuations within a subregion provides a powerful probe of quantum many-body systems. In two spatial dimensions, the shape dependence of the dimensionless corner…
Singular three-point density correlations in two-dimensional Fermi liquids
Pok Man Tam, Charles L. Kane
We characterize a singularity in the equal-time three-point density correlations that is generic to two-dimensional interacting Fermi liquids. In momentum space where the three-poi…
When does a lattice higher-form symmetry flow to a topological higher-form symmetry at low energies?
Ruizhi Liu, Pok Man Tam, Ho Tat Lam +1
We study the lattice version of higher-form symmetries on tensor-product Hilbert spaces. Interestingly, at low energies, these symmetries may not flow to the topological higher-for…
Translation symmetry-enriched toric code insulator
Pok Man Tam, Jörn W. F. Venderbos, Charles L. Kane
We introduce a two-dimensional electronic insulator that possesses a toric code topological order enriched by translation symmetry. This state can be realized from disordering a we…
Non-diagonal anisotropic quantum Hall states
Pok Man Tam, Charles L. Kane
We propose a family of Abelian quantum Hall states termed the non-diagonal states, which arise at filling factors for bosonic systems and for fermionic system…
Local Probes for Quantum Hall Ferroelectrics and Nematics
Pok Man Tam, Tongtong Liu, Inti Sodemann +1
Two-dimensional multi-valley electronic systems in which the dispersion of individual pockets has low symmetry give rise to quantum Hall ferroelectric and nematic states in the pre…