- Conference date: 3–5 November 2010
- Location: Bad Honnef, (Germany)
I will give an overview of our recent studies on polariton quantum optics. I will show how polaritons can be produced in quantum entangled states, thanks to parametric scattering. By combining a time‐dependent density‐matrix model of the coherent polaritons, with a Boltzmann kinetics of the surrounding incoherent polariton gas in interaction with a thermal bath of phonons, the degree of entanglement can be quantified. It turns out that large entanglement is expected under realistic experimental conditions. I will further show how the polariton nonlinearity can be exploited to design quantum devices. As an example, I will model a system of coupled polariton modes, that operates as an efficient source of single photons by exploiting quantum interference between different pathways in the time evolution of the quantum field.
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