Fig. 5: Finite density analysis.
From: Lattice quantum electrodynamics in (3+1)-dimensions at finite density with tensor networks
a Ground state configuration for m = 4.0 at finite charge density ρ = Q/L = 1/4. The system is in the global symmetry sector with Q = 16 positive charges on the lattice with linear size L = 4. b Surface charge density σl on a cube whose faces are at distance l from the boundaries of the lattice with linear size L = 8. The system is in the global symmetry sector with Q = 128 positive charges (finite density ρ = 1/4).
