Tag: Gauge theory
Adjoint QCD2 can exhibit supersymmetry at specific fermion masses
What the study found The study finds that a 1+1-dimensional SU(N) gauge theory with an adjoint Majorana fermion, called adjoint QCD2, exhibits supersymmetry when the fermion mass is set to a specific value. It also identifies related models in which a supersymmetric massive sector coexists with a non-supersymmetric conformal field theory (CFT, a theory describing…
2D Abelian gauge theories show rich phase structure
What the study found Abelian gauge theories in 1+1 dimensions can have a surprisingly rich phase structure as masses are varied. The abstract says these systems include critical lines or points with central charge c = 1 and c = 1/2, and it also points to 2D chiral gauge theories as a setting for symmetric…
Non-Abelian Dirac oscillator shows isospin splitting
What the study found The study finds that a covariant Dirac oscillator can be extended to an SU(2) non-Abelian gauge background, where the commutator term produces matrix-valued spin-isospin couplings and, for an aligned planar background, a closed-form isospin splitting. Why the authors say this matters The authors conclude that the framework separates commutator-driven effects from…
Dimer graphs match relativistic Toda chains and Seiberg-Witten curves
What the study found The authors construct dimer graphs for relativistic Toda chains associated with classical untwisted Lie algebras of A, B, C0, Cπ, and D types, as well as twisted A and D types. They also show that the Seiberg-Witten curve of 5d N=1 pure supersymmetric gauge theory with gauge group G is a…
