  In this work, we present a quasiparticle strategy to study the Hamiltonian
description of the stationary states for two quantum dots--cavity system. We
consider three different effective schemes of quasiparticles that give an
in-depth insight into the physics involved in the Hamiltonian eigenstates for
parameters that optimize or minimize the energy gap condition. We analyze
features of quantum measures like fractional composition, linear entropy, and
concurrence to observe which one description gives the complete physical
information. Our findings show that a polaritonic---light-matter
quasiparticle---approach catch better the physics contained in the whole
regimes considered.
