Title: Entanglement production under electron phonon interaction in a quantum dot
Author(s):

	A.Lopez (Centro de Física, Instituto Venezolano de Investigaciones Científicas, Apartado 21827, Caracas 1020A, Venezuela) ,
	E.Medina (Centro de Física, Instituto Venezolano de Investigaciones Científicas, Apartado 21827, Caracas 1020A, Venezuela)

We consider the quantum dot entangler device introduced by Oliver et al. [1] coupled to a single phonon mode. While we take the phonon interaction to all orders, we perform a fourth order calculation in electron-dot coupling. Using the Von Neumann entropy we measure the degree of entanglement. We find that the phonon mechanism habilitates single electron processes which manifest themselves as decoherent processes.

Key words: quantum dot, entanglement, decoherence
PACS: 03.67.Mn, 73.21.La, 72.10.Di

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