7 papers
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 -dimensional Quantum Electrodynamics coupled to two charged massive fermions. By applying Abelia…
Infinite matrix product states for -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…
Integral constraints for 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…
Vacuum structure of gapped QCD 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…
Conformal collider bootstrap in 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…
More About the Lattice Hamiltonian for Adjoint QCD
Ross Dempsey, Silviu S. Pufu, Benjamin T. Søgaard +1
In our earlier work arXiv:2311.09334, we introduced a lattice Hamiltonian for Adjoint QCD using staggered Majorana fermions. We found the gauge invariant space of states explic…