Stressed Cooper pairing in QCD at high isospin density: effective Lagrangian and random matrix theory
Stressed Cooper pairing in QCD at high isospin density: effective Lagrangian and random matrix theory
We generalize QCD at asymptotically large isospin chemical potential to an arbitrary even number of flavors. We also allow for small quark chemical potentials, which stress the coincident Fermi surfaces of the paired quarks and lead to a sign problem in Monte Carlo simulations. We derive the corresponding low-energy effective …