Speaker
Description
Dense QCD is an important subject in strong-interaction physics. Lattice studies of dense strongly interacting matter have developed along several complementary directions, including two-color QCD at baryon density, three-color QCD using imaginary chemical potential and expansion methods, and three-color QCD at finite isospin density. These studies provide important benchmarks for onset, superfluidity, phase structure, the equation of state, and the speed of sound. Within this broader context, G2-QCD provides an additional QCD-like system. The fundamental representation of the exceptional gauge group G2 is real, allowing two-flavor finite-density simulations with standard importance-sampling methods while retaining fermionic color-singlet baryons. We report an initial exploratory lattice study of two-flavor Wilson fermions at finite quark chemical potential. Our approach builds directly on methods developed in two-color and finite-isospin QCD. We present results obtained so far for finite-density G2-QCD.