Parametric control of Meissner screening in light-driven superconductors

Abstract

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 YBa${}_2$C${}_3$O${}_{7-\delta }$ (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.

20 pages, 7 figures + Supplemental Material

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Cited by in corpus (1)

• Generalized Josephson plasmons in bilayer superconductors