S. Pufu

activity

20062026

most citedTowards the F-Theorem: N=2 Field Theories on the Three-Sphere

527 citations · 6.7k across the 96 of their papers we have counts for

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hep-th2026

The two-flavor Schwinger model at 50: Solving Coleman's puzzles

Gabriel Cuomo, Ross Dempsey, Andrei Katsevich +4

In his 1976 paper "More about the massive Schwinger model", Coleman introduced $1 + 1$ -dimensional Quantum Electrodynamics coupled to two charged massive fermions. By applying Abelia…

hep-th2026

Vacuum structure of gapped QCD $_{2}$ theories from the infinite Hamiltonian lattice

Ross Dempsey, Anna-Maria E. Glück, Silviu S. Pufu +1

Gapped two-dimensional gauge theories with massless fermions generically have rich vacuum structures consisting of many degenerate vacua related by the action of topological line o…

hep-th2025

Conformal collider bootstrap in $N = 4$ SYM

Ross Dempsey, Robin Karlsson, Silviu S. Pufu +2

We use a combination of perturbation theory, holography, supersymmetric localization, integrability, and numerical conformal bootstrap methods to constrain the energy-energy correl…

hep-th2025

Integral constraints for $N = 4$ super-Yang-Mills from a squashed sphere

Shai M. Chester, Ross Dempsey, Debaditya Pramanik +1

Supersymmetric localization and Ward identities have been used in the past several years to derive two integral constraints on the four-point function of the stress-tensor multiple…

hep-th2025

Infinite matrix product states for $(1 + 1)$ -dimensional gauge theories

Ross Dempsey, Anna-Maria E. Glück, Silviu S. Pufu +1

We present a matrix product operator construction that allows us to represent the lattice Hamiltonians of (abelian or non-abelian) gauge theories in a local and manifestly translat…

hep-th2025

Supercurrents and (Partial) Supersymmetry in Adjoint QCD $_{2}$ and Its Generalizations

Igor R. Klebanov, Silviu S. Pufu, Benjamin Søgaard +1

$1 + 1$ -dimensional $S U (N)$ gauge theory coupled to an adjoint Majorana fermion, also known as adjoint QCD $_{2}$ , has the surprising feature that at fermion mass $\sqrt{\frac{g^2 N}{2…

hep-th2024★ 1 cited

Higher-derivative corrections in M-theory from precision numerical bootstrap

Shai M. Chester, Ross Dempsey, Silviu S. Pufu

We study higher-derivative corrections to the graviton scattering amplitude in M-theory, via the stress tensor correlator of 3d $N = 8$ $\text{U}(N)_k\times \text{U}(N)_{-…

hep-th2024

More About the Lattice Hamiltonian for Adjoint QCD $_{2}$

Ross Dempsey, Silviu S. Pufu, Benjamin T. Søgaard +1

In our earlier work arXiv:2311.09334, we introduced a lattice Hamiltonian for Adjoint QCD $_{2}$ using staggered Majorana fermions. We found the gauge invariant space of states explic…

hep-th2024

Small Circle Expansion for Adjoint QCD $_{2}$ with Periodic Boundary Conditions

Ross Dempsey, Igor R. Klebanov, Silviu S. Pufu +1

We study $1 + 1$ -dimensional $SU (N)$ gauge theory coupled to one adjoint multiplet of Majorana fermions on a small spatial circle of circumference $L$ . Using periodic boundary…

hep-th2024

Global Symmetry and Integral Constraint on Superconformal Lines in Four Dimensions

Ross Dempsey, Bendeguz Offertaler, Silviu S. Pufu +1

We study properties of point-like impurities preserving flavor symmetry and supersymmetry in four-dimensional $N = 2$ field theories. At large distances, such impurities are…

hep-th2023★ 3 cited

Level Repulsion in $N = 4$ super-Yang-Mills via Integrability, Holography, and the Bootstrap

Shai M. Chester, Ross Dempsey, Silviu S. Pufu

We combine supersymmetric localization with the numerical conformal bootstrap to bound the scaling dimension and OPE coefficient of the lowest-dimension operator in $\mathcal{N} =…

hep-th2023★ 1 cited

Bootstrapping M-theory Orbifolds

Shai M. Chester, Silviu S. Pufu, Yifan Wang +1

We analyze correlation functions of $S U (k) \times S U (2)_{F}$ flavor currents in a family of three-dimensional $N = 4$ superconformal field theories, combining analytic bootstrap…

hep-th2023

Lattice Hamiltonian for Adjoint QCD $_{2}$

Ross Dempsey, Igor R. Klebanov, Silviu S. Pufu +1

We introduce a Hamiltonian lattice model for the $(1 + 1)$ -dimensional $SU (N_{c})$ gauge theory coupled to one adjoint Majorana fermion of mass $m$ . The discretization of the co…

hep-th2023★ 2 cited

Scattering From $(p, q)$ -Strings in $AdS_{5} \times S^{5}$

Silviu S. Pufu, Victor A. Rodriguez, Yifan Wang

Motivated by understanding the scattering of gravitons and their superpartners from extended $(p, q)$ -strings in type IIB string theory via AdS/CFT, we study an integrated two-poin…

hep-th2023★ 29 cited

Phase Diagram of the Two-Flavor Schwinger Model at Zero Temperature

Ross Dempsey, Igor R. Klebanov, Silviu S. Pufu +2

We examine the phase structure of the two-flavor Schwinger model as a function of the $θ$ -angle and the two masses, $m_{1}$ and $m_{2}$ . In particular, we find interesting effects at $…

hep-th2022★ 27 cited

Adjoint Majorana QCD $_{2}$ at Finite $N$

Ross Dempsey, Igor R. Klebanov, Loki L. Lin +1

The mass spectrum of $1 + 1$ -dimensional $SU (N)$ gauge theory coupled to a Majorana fermion in the adjoint representation has been studied in the large $N$ limit using Light…

hep-th2022★ 1 cited

Discrete Chiral Symmetry and Mass Shift in Lattice Hamiltonian Approach to Schwinger Model

Ross Dempsey, Igor R. Klebanov, Silviu S. Pufu +1

We revisit the lattice formulation of the Schwinger model using the Kogut-Susskind Hamiltonian approach with staggered fermions. This model, introduced by Banks et al., contains th…

hep-th2022★ 4 cited

Snowmass White Paper: Bootstrapping String Theory

Rajesh Gopakumar, Eric Perlmutter, Silviu S. Pufu +1

We discuss progress and prospects in the application of bootstrap methods to string theory.

hep-th2021★ 14 cited

One-Dimensional Sectors From the Squashed Three-Sphere

Pieter Bomans, Silviu Pufu

Three-dimensional $N = 4$ superconformal field theories contain 1d topological sectors consisting of twisted linear combinations of half-BPS local operators that can be i…

hep-th2021★ 8 cited

The $N = 2$ Prepotential and the Sphere Free Energy

Bernardo Zan, Daniel Z. Freedman, Silviu S. Pufu

We study the mass-deformed sphere free energy of three-dimensional $N = 2$ superconformal field theories with holographic duals. Building on previous observations, we con…

hep-th2021★ 3 cited

Bootstrapping $N = 4$ super-Yang-Mills on the conformal manifold

Shai M. Chester, Ross Dempsey, Silviu S. Pufu

We combine supersymmetric localization results with numerical bootstrap techniques to compute upper bounds on the low-lying CFT data of $N = 4$ super-Yang-Mills theory as a…

hep-th2021★ 1 cited

The Holographic Contributions to the Sphere Free Energy

Damon J. Binder, Daniel Z. Freedman, Silviu S. Pufu +1

We study which bulk couplings contribute to the $S^{3}$ free energy $F (m)$ of three-dimensional $N = 2$ superconformal field theories with holographic duals, potent…

hep-th2021★ 43 cited

Exact Symmetries and Threshold States in Two-Dimensional Models for QCD

Ross Dempsey, Igor R. Klebanov, Silviu S. Pufu

Two-dimensional SU $(N)$ gauge theory coupled to a Majorana fermion in the adjoint representation is a nice toy model for higher-dimensional gauge dynamics. It possesses a multitude…

hep-th2020★ 24 cited

The 3d $N = 6$ Bootstrap: From Higher Spins to Strings to Membranes

Damon J. Binder, Shai M. Chester, Max Jerdee +1

We study the space of 3d $N = 6$ SCFTs by combining numerical bootstrap techniques with exact results derived using supersymmetric localization. First we derive the supercon…

The two-flavor Schwinger model at 50: Solving Coleman's puzzles

Vacuum structure of gapped QCD2​ theories from the infinite Hamiltonian lattice

Conformal collider bootstrap in N=4 SYM

Integral constraints for N=4 super-Yang-Mills from a squashed sphere

Infinite matrix product states for (1+1)-dimensional gauge theories

Supercurrents and (Partial) Supersymmetry in Adjoint QCD2​ and Its Generalizations

Higher-derivative corrections in M-theory from precision numerical bootstrap

More About the Lattice Hamiltonian for Adjoint QCD2​

Small Circle Expansion for Adjoint QCD2​ with Periodic Boundary Conditions

Global Symmetry and Integral Constraint on Superconformal Lines in Four Dimensions

Level Repulsion in N=4 super-Yang-Mills via Integrability, Holography, and the Bootstrap

Bootstrapping M-theory Orbifolds

Lattice Hamiltonian for Adjoint QCD2​

Scattering From (p,q)-Strings in AdS5​×S5

Phase Diagram of the Two-Flavor Schwinger Model at Zero Temperature

Adjoint Majorana QCD2​ at Finite N

Discrete Chiral Symmetry and Mass Shift in Lattice Hamiltonian Approach to Schwinger Model

Snowmass White Paper: Bootstrapping String Theory

One-Dimensional Sectors From the Squashed Three-Sphere

The N=2 Prepotential and the Sphere Free Energy

Bootstrapping N=4 super-Yang-Mills on the conformal manifold

The Holographic Contributions to the Sphere Free Energy

Exact Symmetries and Threshold States in Two-Dimensional Models for QCD

The 3d N=6 Bootstrap: From Higher Spins to Strings to Membranes

Vacuum structure of gapped QCD $_{2}$ theories from the infinite Hamiltonian lattice

Conformal collider bootstrap in $N = 4$ SYM

Integral constraints for $N = 4$ super-Yang-Mills from a squashed sphere

Infinite matrix product states for $(1 + 1)$ -dimensional gauge theories

Supercurrents and (Partial) Supersymmetry in Adjoint QCD $_{2}$ and Its Generalizations

More About the Lattice Hamiltonian for Adjoint QCD $_{2}$

Small Circle Expansion for Adjoint QCD $_{2}$ with Periodic Boundary Conditions

Level Repulsion in $N = 4$ super-Yang-Mills via Integrability, Holography, and the Bootstrap

Lattice Hamiltonian for Adjoint QCD $_{2}$

Scattering From $(p, q)$ -Strings in $AdS_{5} \times S^{5}$

Adjoint Majorana QCD $_{2}$ at Finite $N$

The $N = 2$ Prepotential and the Sphere Free Energy

Bootstrapping $N = 4$ super-Yang-Mills on the conformal manifold

The 3d $N = 6$ Bootstrap: From Higher Spins to Strings to Membranes