Abstract:
The back reaction imparted by a uniform distribution of heavy static fundamental quarks on
large Nc strongly coupled gauge theory can be holographically realized as a deformation in
AdS blackhole background. The presence of back reaction brings significant changes in to the
entanglement structure of the strongly coupled boundary theory at finite temperature. Since
the deformed blackhole geometry still remains asymptotically AdS, the gauge/gravity duality
allows us to explore the entanglement structure of back reacted plasma in a quantitative way by
computing various measures, e.g holographic entanglement entropy (HEE) and entanglement
wedge cross section (EWCS). We explicitly study the variation of those entanglement measures
with respect to the uniform density of heavy static fundamental quarks present in the boundary
theory. In particular, we notice enhancement of both HEE and EWCS with respect to quark
density. We also study the effect of back reaction on the holographic subregion volume complexity. In this analysis we observe an occurrence of logarithmic divergence proportional to the
quark density parameter.
