  Vortices are topological defects associated with superfluids and
superconductors, which, when mobile, dissipate energy destroying the
dissipation-less nature of the superfluid. The nature of this "quantum
dissipation" is rooted in the quantum physical nature of the problem, which has
been subject of an extensive literature. However, this has mostly be focused on
the measures applicable in weakly interacting systems wherein they are
tractable via conventional methods. Recently it became possible to address such
dynamical quantum thermalization problems in very strongly interacting systems
using the holographic duality discovered in string theory, mapping the quantum
problem on a gravitational problem in one higher dimension, having as benefit
offering a more general view on how dissipation emerges from such intricate
quantum physical circumstances. We study here the elementary problem of a
single vortex in two space dimensions, set in motion by a sudden quench in the
background superflow formed in a finite density "Reissner-Nordstrom"
holographic superconductor. This reveals a number of surprising outcomes
addressing questions of principle. By fitting the trajectories unambiguously to
the Hall-Vinen-Iordanskii phenomenological equation of motion we find that
these are characterized by a large inertial mass at low temperature that
however diminishes upon raising temperature. For a weak drive the drag is found
to increase when temperature is lowered which reveals a simple shear drag
associated with the viscous metallic vortex cores, supplemented by a
conventional normal fluid component at higher temperatures. For a strong drive
we discover a novel dynamical phenomenon: the core of the vortex deforms
accompanied by a large increase of the drag force.
