Density operator of a system pumped with polaritons: A Jaynes-Cummings like approach

Details Density operator of a system pumped with polaritons: A Jaynes-Cummings like approach Density operator of a system pumped with polaritons: A Jaynes-Cummings like approach

2010-05-11

arxiv.org/abs/1005.2318v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

16 pages, 4 figures

Scientific paper

We investigate the effects of considering two different incoherent pumpings over a microcavity-quantum dot system modelled using the Jaynes-Cummings Hamiltonian. When the system is incoherently pumped with polaritons it is able to sustain a large number of photons inside the cavity with Poisson-like statistics in the stationary limit, and also leads to a separable exciton-photon state. We also investigate the effects of both types of pumpings (Excitonic and Polaritonic) in the emission spectrum of the cavity. We show that the polaritonic pumping as considered here is unable to modify the dynamical regimes of the system as the excitonics pumping does. Finally, we obtain a closed form expression for the negativity of the density matrices that the quantum master equation considered here generates.

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