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

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

2009-08-24

arxiv.org/abs/0908.3422v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

To appear in Journal of Physics: Condensed Matter

Scientific paper

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.

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