Characterization of dynamical regimes and entanglement sudden death in a microcavity quantum - dot system

Abstract

The relation between the dynamical regimes (weak and strong coupling) and entanglement for a dissipative quantum - dot microcavity system is studied. In the framework of a phenomenological temperature model an analysis in both, temporal (population dynamics) and frequency domain (photoluminescence) is carried out in order to identify the associated dynamical behavior. The Wigner function and concurrence are employed to quantify the entanglement in each regime. We find that sudden death of entanglement is a typical characteristic of the strong coupling regime.

To appear in Journal of Physics: Condensed Matter

References in corpus (4)

• Polariton laser using single micropillar GaAs-GaAlAs semiconductor cavities
• Quantum Degenerate Exciton-Polaritons in Thermal Equilibrium
• Strong-coupling of quantum dots in microcavities
• Control of non-Markovian effects in the dynamics of polaritons in semiconductor microcavities

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• Preparation of a three-photon state in a nonlinear cavity - quantum dot system
• Non-Classical Behaviour of Scalar Wave Fields in Any State of Spatial Coherence and Point Sources in the Phase-Space Representation
• Indirect strong coupling regime between a quantum dot and a nanocavity mediated by a mechanical resonator