  Our cavity quantum electrodynamics calculations demonstrate generation of
steady-state entanglement between a plasmonically coupled pair of quantum dots
by using single-mode squeezed light source. We show that strong coupling of
plasmons to the incoming light source and the pairwise nature of squeezed
photon generation enable the formation of entanglement between the initially
unexcited quantum dots. The entanglement of quantum dots, measured as
concurrence, can be improved replacing a pulsed source of light to continuous
pumping of squeezed photons. Unlike previously introduced schemes the
concurrence is robust against variations in the system parameters.
Specifically, the generation of entanglement does not rely on fine tuning of
plasmon quantum dot coupling. This work provides a new perspective for robust
entangled state preparation in open quantum systems.
