Exciton superfluidity in two-dimensional bilayers at zero and high magnetic fields
The study compares interlayer exciton superfluidity in zero-field and high-field quantum Hall bilayers using Hartree-Fock theory. It found that mean-field coherence exists at all separations, but screening modifies the energy scale and spatial decay, leading to different behaviors (1/d vs. Gaussian) depending on the magnetic field.