Roman Mankowsky is awarded the Reimar Lüst Grant

of the Max Planck Society for his PhD studies

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Marta Gibert receives SNSF Professorship

for her project on Functional oxide heterostructures by design.

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Publication Detail / Abstract

J. Coulthard, S. R. Clark, S. Al-Assam, A. Cavalleri, D. Jaksch

Enhancement of super-exchange pairing in the periodically-driven Hubbard model

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We show that periodic driving can enhance electron pairing in strongly-correlated systems. Focusing on the strong-coupling limit of the doped Hubbard model we investigate in-gap, spatially inhomogeneous, on-site modulations and demonstrate that they substantially reduce electronic hopping without suppressing super-exchange interactions and pair hopping. We calculate real-time dynamics for the one-dimensional case, starting from zero and finite temperature initial states, and show that enhanced singlet-pair correlations emerge quickly and robustly in the out-of-equilibrium many-body state. Our results reveal a fundamental pairing mechanism that might underpin optically induced superconductivity in some strongly correlated quantum materials.
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