Large-N reduction in QCD with two adjoint Dirac fermions

Understand

We use lattice simulations to study the single-site version of SU(N) lattice gauge theory with two flavors of Wilson-Dirac fermions in the adjoint representation, a theory whose large volume correspondent is expected to be conformal or nearly conformal.

• Working with N as large as 53, we map out the phase diagram in the plane of bare `t Hooft coupling, g^2 N, and of the lattice quark mass, a*m, and look for the region where the Z_N^4 center symmetry of the theory is intact.
• In this region one expects the large-N equivalence of the single site and infinite volume theories to be valid.
• As for the N_f=1 case (see Phys.