27 citations · 58 across the 6 of their papers we have counts for
6 papers
Superradiant emission stimulated by vortex-antivortex pair production in layered superconductors
Ahmad Sheikhzada, Alex Gurevich
We report numerical simulations of coupled sine-Gordon and heat diffusion equations describing dynamic states stimulated by a trapped vortex driven by dc current in a stack of up t…
Dynamic pair-breaking current, critical superfluid velocity and nonlinear electromagnetic response of nonequilibrium superconductors
Ahmad Sheikhzada, Alex Gurevich
We report numerical calculations of a dynamic pairbreaking current density and a critical superfluid velocity in a nonequilibrium superconductor carrying a uniform, lar…
Instability of flux flow and production of vortex-antivortex pairs by current-driven Josephson vortices in layered superconductors
Ahmad Sheikhzada, Alex Gurevich
We report numerical simulations of the nonlinear dynamics of Josephson vortices driven by strong dc currents in layered superconductors. Dynamic equations for interlayer phase diff…
Dynamic transition of vortices into phase slips and generation of vortex-antivortex pairs in thin film Josephson junctions under dc and ac currents
Ahmad Sheikhzada, Alex Gurevich
We present theoretical and numerical investigations of vortices driven by strong dc and ac currents in long Josephson junctions described by a nonlinear integro-differential equati…
Fragmentation of Fast Josephson Vortices and Breakdown of Ordered States by Moving Topological Defects
Ahmad Sheikhzada, Alex Gurevich
Topological defects such as vortices, dislocations or domain walls define many important effects in superconductivity, superfluidity, magnetism, liquid crystals, and plasticity of…
Nonlinear dynamics of Josephson vortices in a film screen under dc and ac magnetic fields
Ahmad Sheikhzada, Alexander Gurevich
We present detailed numerical simulations of Josephson vortices in a long Josephson junction perpendicular to a thin film screen under strong dc and ac magnetic fields. By solving…