Light-induced d-wave superconductivity through Floquet-engineered Fermi surfaces in cuprates
ORAL
Abstract
We introduce a mechanism for light-induced Floquet engineering of the Fermi surface to dynamically tip the balance between competing instabilities in correlated condensed matter systems in the vicinity of a van-Hove singularity. We first calculate how the Fermi surface is deformed by an off-resonant, high-frequency light field and then determine the impact of this deformation on the ordering tendencies using an unbiased functional renormalization group approach. As a testbed, we investigate Floquet engineering in cuprates driven by light. We find that the $d$-wave superconducting ordering tendency in this system can be strongly enhanced over the Mott insulating one. This gives rise to extended regions of induced $d$-wave superconductivity in the effective phase diagram in the presence of a light field.
*D.M.K. and C.K. acknowledge support by the Deutsche Forschungsgemeinschaft through the Emmy Noether program (KA 3360/2-1). M.C. acknowledges support from the Flatiron Institute, a division of the Simons Foundation. M.A.S. acknowledges financial support by the DFG through the Emmy Noether program (SE 2558/2-1). Simulations were performed with computing resources granted by RWTH Aachen University under projects rwth0013 and prep0010.
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Presenters
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Dante Kennes
- Freie Universitaet Berlin
- Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universitat Berlin
- Max Planck Institute for the Structure and Dynamics of Matter
- Freie Universität Berlin
- Physics, Freie Universität Berlin
- Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin
- Fachbereich Physik, Freie Universit{\"a}t Berlin
- Columbia University