280 citations · 2.1k across the 25 of their papers we have counts for
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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…
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…
Gapless Infinite-component Chern-Simons-Maxwell Theories
Xie Chen, Ho Tat Lam, Xiuqi Ma
The infinite-component Chern-Simons-Maxwell (iCSM) theory is a 3+1D generalization of the 2+1D Chern-Simons-Maxwell theory by including an infinite number of coupled gauge fields.…
2+1d Compact Lifshitz Theory, Tensor Gauge Theory, and Fractons
Pranay Gorantla, Ho Tat Lam, Nathan Seiberg +1
The 2+1d continuum Lifshitz theory of a free compact scalar field plays a prominent role in a variety of quantum systems in condensed matter physics and high energy physics. It is…