Twisted chiral superconductivity in photodoped frustrated Mott insulators

Abstract

Numerical simulations based on dynamical mean field theory and exact diagonalization demonstrate that photodoping can induce a chiral superconducting phase in Mott insulators on geometrically frustrated lattices. This metastable phase features a phase twist between lattice sites, which breaks both time-reversal and inversion symmetry. Under an external electric pulse, the chiral superconducting state can exhibit a second-order supercurrent perpendicular to the field, similar to a nonlinear anomalous Hall effect.