280 citations · 2.1k across the 25 of their papers we have counts for
25 papers
Classification of Dipolar Symmetry-Protected Topological Phases: Matrix Product States, Stabilizer Hamiltonians and Finite Tensor Gauge Theories
Ho Tat Lam
We classify one-dimensional symmetry-protected topological (SPT) phases protected by dipole symmetries. A dipole symmetry comprises two sets of symmetry generators: charge and dipo…
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…
Topological quantum chains protected by dipolar and other modulated symmetries
Jung Hoon Han, Ethan Lake, Ho Tat Lam +2
We investigate the physics of one-dimensional symmetry protected topological (SPT) phases protected by symmetries whose symmetry generators exhibit spatial modulation. We focus in…
Quantization of Axion-Gauge Couplings and Non-Invertible Higher Symmetries
Yichul Choi, Matthew Forslund, Ho Tat Lam +1
We derive model-independent quantization conditions on the axion couplings (sometimes known as the anomaly coefficients) to the Standard Model gauge group $[SU(3)\times SU(2)\times…
Non-Invertible Gauss Law and Axions
Yichul Choi, Ho Tat Lam, Shu-Heng Shao
In axion-Maxwell theory at the minimal axion-photon coupling, we find non-invertible 0- and 1-form global symmetries arising from the naive shift and center symmetries. Since the G…
Gapped Lineon and Fracton Models on Graphs
Pranay Gorantla, Ho Tat Lam, Nathan Seiberg +1
We introduce a stabilizer code that can be defined on any spatial lattice of the form , where is a general graph. We also present the low-energy…