Twin polaritons in semiconductor microcavities
Jean-Philippe Karr, Augustin Baas, Elisabeth Giacobino
TL;DR
This paper analytically investigates quantum correlations in polariton pair scattering within semiconductor microcavities, revealing conditions for strong correlations and analyzing the impact of various parameters on these quantum effects.
Contribution
It provides an analytical framework for understanding quantum correlations in polariton pairs and examines how different parameters influence these correlations.
Findings
Strong quantum correlations between signal and idler polaritons are achievable.
Quantum effects on outgoing light are diminished due to coupling mismatches.
Parameter variations significantly affect the strength of quantum correlations.
Abstract
The quantum correlations between the beams generated by polariton pair scattering in a semiconductor microcavity above the parametric oscillation threshold are computed analytically. The influence of various parameters like the cavity-exciton detuning, the intensity mismatch between the signal and idler beams and the amount of spurious noise is analyzed. We show that very strong quantum correlations between the signal and idler polaritons can be achieved. The quantum effects on the outgoing light fields are strongly reduced due to the large mismatch in the coupling of the signal and idler polaritons to the external photons.
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