QCD with two light-quark flavors at high baryonic density is a color superconductor. The diquark condensate breaks the SU(3) gauge symmetry down to an SU(2) subgroup. We study thermal fluctuations of the superconductor for temperatures below the gap. These are described by a simple transport equation. In the collisionless limit and close to equilibrium, it gives rise to the "hard superconductin...

Abstract Fe 1+ y Te 1− x Se is characterized by its complex magnetic phase diagram and highly orbital-dependent band renormalization. Despite this, the behavior of nematicity nematic fluctuations, especially for high tellurium concentrations, remains largely unknown. Here we present a study both B 1 g 2 fluctuations in (0 ≤ 0.53) using technique elastoresistivity measurement. We discovered that...