Speaker
Jiajun Li
Description
We report how a new type of chiral superconducting phase can be stabilized in photodoped frustrated Mott insulators. The metastable phase features a spatially varying order parameter with a 120 degree phase twist which breaks both time-reversal and inversion symmetry. Under an external electric pulse, the 120 degree chiral superconducting state can exhibit a second-order supercurrent perpendicular to the field in addition to a first-order parallel response, similar to a nonlinear anomalous Hall effect. This phase can be tuned by artificial gauge fields when the system is dressed by high-frequency periodic driving. The mechanism revealed in this study can be realized in both cold-atom quantum simulators and correlated solids.
Authors
Dr
Andreas Laeuchli
(Paul Scherrer Institute)
Jiajun Li
Dr
Aaram Kim
(University of Fribourg)
Markus Müller
(PSI - Paul Scherrer Institut)
Dr
Philipp Werner
(University of Fribourg)
