Entanglement Dynamics of Two Independent Cavity-Embedded Quantum Dots

Details Entanglement Dynamics of Two Independent Cavity-Embedded Quantum Dots Entanglement Dynamics of Two Independent Cavity-Embedded Quantum Dots

2010-11-22

arxiv.org/abs/1011.4862v1

Physica Scripta T143, 014004 (2011)

Physics

Quantum Physics

10 pages, 4 figures, to appear in Topical Issue of Physica Scripta on proceedings of CEWQO 2010

Scientific paper

10.1088/0031-8949/2011/T143/0140

We investigate the dynamical behavior of entanglement in a system made by two solid-state emitters, as two quantum dots, embedded in two separated micro-cavities. In these solid-state systems, in addition to the coupling with the cavity mode, the emitter is coupled to a continuum of leaky modes providing additional losses and it is also subject to a phonon-induced pure dephasing mechanism. We model this physical configuration as a multipartite system composed by two independent parts each containing a qubit embedded in a single-mode cavity, exposed to cavity losses, spontaneous emission and pure dephasing. We study the time evolution of entanglement of this multipartite open system finally applying this theoretical framework to the case of currently available solid-state quantum dots in micro-cavities.

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