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arXiv · 2011.08094

Higgs mode mediated enhancement of interlayer transport in high-$T_c$ cuprate superconductors

Guido Homann·Jayson G. Cosme·Junichi Okamoto·Ludwig Mathey
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Abstract

We put forth a mechanism for enhancing the interlayer transport in cuprate superconductors, by optically driving plasmonic excitations along the $c$ axis with a frequency that is blue-detuned from the Higgs frequency. The plasmonic excitations induce a collective oscillation of the Higgs field which induces a parametric enhancement of the superconducting response, as we demonstrate with a minimal analytical model. Furthermore, we perform simulations of a particle-hole symmetric $U(1)$ lattice gauge theory and find good agreement with our analytical prediction. We map out the renormalization of the interlayer coupling as a function of the parameters of the optical field and demonstrate that the Higgs mode mediated enhancement can be larger than $50\%$.

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Guido Homann, Jayson G. Cosme, Junichi Okamoto, Ludwig Mathey. 2020-11-16. Higgs mode mediated enhancement of interlayer transport in high-$T_c$ cuprate superconductors. https://doi.org/10.1103/physrevb.103.224503

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