9 papers · 1 filter
Skyrmions in Yang--Mills Theories with Massless Adjoint Quarks
R. Auzzi, S. Bolognesi, M. Shifman
Dynamics of SU(N_c) Yang--Mills theories with N_f adjoint Weyl fermions is quite different from that of SU(N_c) gauge theories with fundamental quarks. The symmetry breaking patter…
Planar Limit of Orientifold Field Theories and Emergent Center Symmetry
Adi Armoni, Mikhail Shifman, Mithat Unsal
We consider orientifold field theories (i.e. SU(N) Yang--Mills theories with fermions in the two-index symmetric or antisymmetric representations) on R3xS1 where the compact dimens…
Some Theoretical Developments in SUSY
M. Shifman
I review theoretical developments of the last year or so in nonperturbative supersymmetry. Topics: (i) Metastable vacua at strong coupling; (ii) Non-Abelian flux tubes, confined mo…
Curves of Marginal Stability in Two-Dimensional CP(N-1) Models with Z_N-Symmetric Twisted Masses
S. Olmez, M. Shifman
We consider curves of marginal stability (CMS) in CP(N-1) models in two dimensions with N = (2, 2) supersymmetry. In these theories, one can introduce twisted mass terms. The BPS s…
The Hopf Skyrmion in QCD with Adjoint Quarks
S. Bolognesi, M. Shifman
We consider a modification of QCD in which conventional fundamental quarks are replaced by Weyl fermions in the adjoint representation of the color SU(N). In the case of two flavor…
Planar Equivalence 2006
Adi Armoni, M. Shifman
Planar equivalence between supersymmetric Yang--Mills theory and its orientifold daughters is a promising tool for explorations of nonperturbative aspects of quantum chromodynamics…