Allais, AndreaBauer, JohannesSachdev, Subir2015-06-122014Allais, Andrea, Johannes Bauer, and Subir Sachdev. 2014. “Density Wave Instabilities in a Correlated Two-Dimensional Metal.” Phys. Rev. B 90 (15) (October). doi:10.1103/physrevb.90.155114.1098-0121http://nrs.harvard.edu/urn-3:HUL.InstRepos:16319736Motivated by recent experimental evidence of charge order in the pseudogap phase of cuprates, we perform a variational analysis of spin-singlet density wave ordering in metals with antiferromagnetic interactions on the square lattice, using a wave function with double occupancy projected out. We examine ordering with and without time-reversal symmetry, with an arbitrary wave vector and a tunable form factor. Depending on parameters, we find d-form factor density wave ordering, with a wave vector either parallel to the lattice generators or diagonally oriented, or a ground state which carries a time-reversal breaking pattern of spontaneous currents.en-USJournal Article2015-06-1210.1103/PhysRevB.90.155114