We investigate the Meissner effect in a parametrically driven superconductor using a semiclassical U(1) lattice gauge theory. Specifically, we periodically drive the z-axis tunneling, which leads to an enhancement of the imaginary part of the z-axis conductivity at low frequencies if the driving frequency is blue-detuned from the plasma frequency. This has been proposed as a possible mechanism for light-enhanced interlayer transport in YBa2C3O7−δ (YBCO). In contrast to this enhancement of the conductivity, we find that the screening of magnetic fields is less effective than in equilibrium for blue-detuned driving, while it displays a tendency to be enhanced for red-detuned driving.
@article{arxiv.2204.12989,
title = {Parametric control of Meissner screening in light-driven superconductors},
author = {Guido Homann and Jayson G. Cosme and Ludwig Mathey},
journal= {arXiv preprint arXiv:2204.12989},
year = {2022}
}