383 citations · 4.2k across the 101 of their papers we have counts for
12 papers · 1 filter
Parametric control of Meissner screening in light-driven superconductors
Guido Homann, Jayson G. Cosme, Ludwig Mathey
We investigate the Meissner effect in a parametrically driven superconductor using a semiclassical lattice gauge theory. Specifically, we periodically drive the -axis tun…
Cooper problem in a cuprate lattice
Ali Sanayei, Ludwig Mathey
We solve the Cooper problem in a cuprate lattice by utilizing a three-band model. We determine the ground state of a Cooper pair for repulsive on-site interactions, and demonstrate…
Terahertz amplifiers based on gain reflectivity in cuprate superconductors
Guido Homann, Jayson G. Cosme, Ludwig Mathey
We demonstrate that parametric driving of suitable collective modes in cuprate superconductors results in a reflectivity for frequencies in the low terahertz regime. We propo…
Squeezed-field path-integral description of BCS superconductors
Kazuma Nagao, Dapeng Li, Ludwig Mathey
We develop a squeezed-field path-integral representation for BCS superconductors utilizing a generalized completeness relation of squeezed-fermionic coherent states. We derive a Gr…
Higgs mode mediated enhancement of interlayer transport in high- cuprate superconductors
Guido Homann, Jayson G. Cosme, Junichi Okamoto +1
We put forth a mechanism for enhancing the interlayer transport in cuprate superconductors, by optically driving plasmonic excitations along the axis with a frequency that is b…
Higgs time crystal in a high- superconductor
Guido Homann, Jayson G. Cosme, Ludwig Mathey
We propose to induce a time crystalline state in a high- superconductor, by optically driving a sum resonance of the Higgs mode and a Josephson plasma mode. The generic cubic…
Electron trimer states in conventional superconductors
Ali Sanayei, Pascal Naidon, Ludwig Mathey
We expand the Cooper problem by including a third electron in an otherwise empty band. We demonstrate the formation of a trimer state of two electrons above the Fermi sea and the t…
Transiently enhanced interlayer tunneling in optically driven high superconductors
Jun-ichi Okamoto, Wanzheng Hu, Andrea Cavalleri +1
Recent pump-probe experiments reported an enhancement of superconducting transport along the -axis of underdoped YBaCuO (YBCO), induced by a mid-infrared optical…
Probing optically silent superfluid stripes in cuprates
Srivats Rajasekaran, Jun-ichi Okamoto, Ludwig Mathey +4
Unconventional superconductivity in the cuprates emerges from, or coexists with, other types of electronic order. However, these orders are sometimes invisible because of their sym…
Theory of enhanced interlayer tunneling in optically driven high superconductors
Jun-ichi Okamoto, Andrea Cavalleri, Ludwig Mathey
Motivated by recent pump-probe experiments indicating enhanced coherent -axis transport in underdoped YBCO, we study Josephson junctions periodically driven by optical pulses. W…
Magnus expansion approach to parametric oscillator systems in a thermal bath
B. Zhu, T. Rexin, L. Mathey
We develop a Magnus formalism for periodically driven systems which provides an expansion both in the driving term and the inverse driving frequency, applicable to isolated and dis…
Redistribution of phase fluctuations in a periodically driven cuprate superconductor
R. Höppner, B. Zhu, T. Rexin +2
We study the thermally fluctuating state of a bi-layer cuprate superconductor under the periodic action of a staggered field oscillating at optical frequencies. This analysis disti…