Interplay of Gauss Law and the fermion sign problem in quantum link models with dynamical matter

Pallabi Dey, Debasish Banerjee, Emilie Huffman

Quantum Link Models with dynamical matter coupled to spin-$\frac{1}{2}\mathrm{U}(1)$ gauge fields in $d=2+1$ and $3+1$ can potentially give rise to the Coulomb phase expected in qua…