activity
20132023
most citedTopological Defect Lines and Renormalization Group Flows in Two Dimensions

412 citations · 1.8k across the 43 of their papers we have counts for

collaborators

43 papers

hep-th2023

Blackhole/blackring transition

Indranil Halder, Ying-Hsuan Lin

We consider BPS states in M theory compactified on a Calabi-Yau threefold with one Kähler parameter, and investigate their relation to blackholes and blackrings. On the microscopic…

hep-th2023★ 29 cited

Decoding stringy near-supersymmetric black holes

Chi-Ming Chang, Li Feng, Ying-Hsuan Lin +1

Building on the recent discovery of the first candidate black hole operator in super-Yang-Mills, we explore the near-supersymmetric aspects of the theory that captu…

hep-th2023★ 32 cited

Classification of chiral fermionic CFTs of central charge

Philip Boyle Smith, Ying-Hsuan Lin, Yuji Tachikawa +1

We classify two-dimensional purely chiral conformal field theories which are defined on two-dimensional surfaces equipped with spin structure and have central charge less than or e…

hep-th2023★ 60 cited

Bootstrapping Non-Invertible Symmetries

Ying-Hsuan Lin, Shu-Heng Shao

Using the numerical modular bootstrap, we constrain the space of 1+1d CFTs with a finite non-invertible global symmetry described by a fusion category . We derive univ…

hep-th2022★ 16 cited

Topological modularity of Supermoonshine

Jan Albert, Justin Kaidi, Ying-Hsuan Lin

The theory of topological modular forms (TMF) predicts that elliptic genera of physical theories satisfy a certain divisibility property, determined by the theory's gravitational a…

hep-th2022★ 61 cited

Words to describe a black hole

Chi-Ming Chang, Ying-Hsuan Lin

We revamp the constructive enumeration of 1/16-BPS states in the maximally supersymmetric Yang-Mills in four dimensions, and search for ones that are not of multi-graviton form. A…

hep-th2022★ 134 cited

Asymptotic density of states in 2d CFTs with non-invertible symmetries

Ying-Hsuan Lin, Masaki Okada, Sahand Seifnashri +1

It is known that the asymptotic density of states of a 2d CFT in an irreducible representation of a finite symmetry group is proportional to . We show how this s…

hep-th2022

Topological modularity of Monstrous Moonshine

Ying-Hsuan Lin

We explore connections among Monstrous Moonshine, orbifolds, the Kitaev chain and topological modular forms. Symmetric orbifolds of the Monster CFT, together with further orbifolds…

hep-th2022★ 6 cited

Bootstrapping the Ising Model on the Lattice

Minjae Cho, Barak Gabai, Ying-Hsuan Lin +3

We study the statistical Ising model of spins on the infinite lattice using a bootstrap method that combines spin-flip identities with positivity conditions, including reflection p…

hep-th2021★ 8 cited

Holomorphic CFTs and topological modular forms

Ying-Hsuan Lin, Du Pei

We use the theory of topological modular forms to constrain bosonic holomorphic CFTs, which can be viewed as SCFTs with trivial right-moving supersymmetric sector. A conjec…

hep-th2021★ 113 cited

Construction of two-dimensional topological field theories with non-invertible symmetries

Tzu-Chen Huang, Ying-Hsuan Lin, Sahand Seifnashri

We construct the defining data of two-dimensional topological field theories (TFTs) enriched by non-invertible symmetries/topological defect lines. Simple formulae for the three-po…

cond-mat.stat-mech2021★ 59 cited

Numerical evidence for a Haagerup conformal field theory

Tzu-Chen Huang, Ying-Hsuan Lin, Kantaro Ohmori +2

We numerically study an anyon chain based on the Haagerup fusion category, and find evidence that it leads in the long-distance limit to a conformal field theory whose central char…

hep-th2021★ 32 cited

Holomorphic modular bootstrap revisited

Justin Kaidi, Ying-Hsuan Lin, Julio Parra-Martinez

In this work we revisit the "holomorphic modular bootstrap", i.e. the classification of rational conformal field theories via an analysis of the modular differential equations sati…

hep-th2021★ 37 cited

Topological Field Theory with Haagerup Symmetry

Tzu-Chen Huang, Ying-Hsuan Lin

We construct a (1+1) topological field theory (TFT) whose topological defect lines (TDLs) realize the transparent Haagerup fusion category. This TFT has six vacu…

hep-th2021★ 48 cited

Symmetries, Anomalies, and the Modular Bootstrap

Ying-Hsuan Lin, Shu-Heng Shao

We explore constraints on (1+1) unitary conformal field theory with an internal global symmetry, by bounding the lightest symmetry-preserving scalar primary opera…

hep-th2020★ 43 cited

Lorentzian Dynamics and Factorization Beyond Rationality

Chi-Ming Chang, Ying-Hsuan Lin

We investigate the emergence of topological defect lines in the conformal Regge limit of two-dimensional conformal field theory. We explain how a local operator can be factorized i…

hep-th2020★ 7 cited

On Exotic Consistent Anomalies in (1+1): A Ghost Story

Chi-Ming Chang, Ying-Hsuan Lin

We revisit 't Hooft anomalies in (1+1) non-spin quantum field theory, starting from the consistency and locality conditions, and find that consistent U(1) and gravitational anom…

math.CT2020★ 3 cited

The -Symbols for Transparent Haagerup-Izumi Categories with

Tzu-Chen Huang, Ying-Hsuan Lin

A fusion category is called transparent if the associator involving any invertible object is the identity map. For the Haagerup-Izumi fusion rings with (the…

cond-mat.str-el2020★ 17 cited

An Effective Field Theory for Fractional Quantum Hall Systems near

Po-Shen Hsin, Ying-Hsuan Lin, Natalie M. Paquette +1

We propose an effective field theory (EFT) of fractional quantum Hall systems near the filling fraction that flows to pertinent IR candidate phases, including non-abelian P…

hep-th2020★ 26 cited

Lessons from the Ramond sector

Nathan Benjamin, Ying-Hsuan Lin

We revisit the consistency of torus partition functions in (1+1) fermionic conformal field theories, combining traditional ingredients of modular invariance/covariance with a mo…

hep-th2019★ 7 cited

Duality Defect of the Monster CFT

Ying-Hsuan Lin, Shu-Heng Shao

We show that the fermionization of the Monster CFT with respect to is the tensor product of a free fermion and the Baby Monster CFT. The chiral fermion parity of…

hep-th2019★ 3 cited

Proving the 6d Cardy Formula and Matching Global Gravitational Anomalies

Chi-Ming Chang, Martin Fluder, Ying-Hsuan Lin +1

A Cardy formula for 6d superconformal field theories (SCFTs) conjectured by Di Pietro and Komargodski in [1] governs the universal behavior of the supersymmetric partition function…

hep-th2019★ 14 cited

3d N=4 Bootstrap and Mirror Symmetry

Chi-Ming Chang, Martin Fluder, Ying-Hsuan Lin +2

We investigate the non-BPS realm of 3d superconformal field theory by uniting the non-perturbative methods of the conformal bootstrap and supersymmetric localization…

hep-th2019★ 6 cited

Bounds on Triangle Anomalies in (3+1)d

Ying-Hsuan Lin, David Meltzer, Shu-Heng Shao +1

How many charged degrees of freedom are necessary to accommodate a certain amount of 't Hooft anomaly? Using the conformal bootstrap for the four-point function of flavor current m…