activity
20152026
most citedConformal Basis, Optical Theorem, and the Bulk Point Singularity

82 citations · 152 across the 7 of their papers we have counts for

collaborators

8 papers

hep-th2026

Chiral Tube Algebras I: Topological Defect Lines, Twisted Modules, and Finite Gauging

Nathan Benjamin, Ho Tat Lam, Conghuan Luo

Chiral algebras and topological defect lines (TDLs) represent two complementary notions of symmetry in 2d conformal field theories. In this paper, we introduce chiral tube algebras…

hep-th2025

Symmetry TFTs for Continuous Spacetime Symmetries

Fabio Apruzzi, Nicola Dondi, Iñaki García Etxebarria +2

We propose a Symmetry Topological Field Theory (SymTFT) for continuous spacetime symmetries. For a -dimensional theory, it is given by a -dimensional BF-theory for the sp…

cond-mat.str-el2023

Ground State Degeneracy of Infinite-Component Chern-Simons-Maxwell Theories: Foliated vs. Non-foliated Fracton Orders

Xie Chen, Ho Tat Lam, Xiuqi Ma

Infinite-component Chern-Simons-Maxwell theories with a block-Toeplitz K matrix provide a vast landscape of gapped and gapless, foliated and non-foliated fracton orders. In this pa…

cond-mat.str-el2020★ 60 cited

More Exotic Field Theories in 3+1 Dimensions

Pranay Gorantla, Ho Tat Lam, Nathan Seiberg +1

We continue the exploration of nonstandard continuum field theories related to fractons in 3+1 dimensions. Our theories exhibit exotic global and gauge symmetries, defects with res…

hep-th2020★ 2 cited

Interface Junctions in QCD

Pranay Gorantla, Ho Tat Lam

We study 3+1 dimensional Quantum Chromodynamics (QCD) with degenerate quarks that have a spatially varying complex mass. It leads to a network of interfaces connected…

hep-th2017★ 82 cited

Conformal Basis, Optical Theorem, and the Bulk Point Singularity

Ho Tat Lam, Shu-Heng Shao

We study general properties of the conformal basis, the space of wavefunctions in -dimensional Minkowski space that are primaries of the Lorentz group . Scatterin…

hep-th2016

Resumming the POPE at One Loop

Ho Tat Lam, Matt von Hippel

The Pentagon Operator Product Expansion represents polygonal Wilson loops in planar super Yang-Mills in terms of a series of flux tube excitations for finite coupli…

quant-ph2015★ 8 cited

Ramsauer effect in one-dimensional quantum walk with multiple defects

Ho Tat Lam, Kwok Yip Szeto

Experimental observations of quantum walks in one dimension have provided many exciting applications in quantum computing, while recent theoretical investigation of single phase de…