5 papers
Supercurrents and (Partial) Supersymmetry in Adjoint QCD and Its Generalizations
Igor R. Klebanov, Silviu S. Pufu, Benjamin Søgaard +1
-dimensional gauge theory coupled to an adjoint Majorana fermion, also known as adjoint QCD, has the surprising feature that at fermion mass $\sqrt{\frac{g^2 N}{2…
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…
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…
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…