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arXiv · 1808.04655

Light-induced d-wave superconductivity through Floquet-engineered Fermi surfaces in cuprates

Dante M. Kennes·Martin Claassen·Michael A. Sentef·Christoph Karrasch
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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.

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Dante M. Kennes, Martin Claassen, Michael A. Sentef, Christoph Karrasch. 2018-08-14. Light-induced d-wave superconductivity through Floquet-engineered Fermi surfaces in cuprates. https://doi.org/10.1103/physrevb.100.075115

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