Noise induced entanglement

Details Noise induced entanglement Noise induced entanglement

2003-09-29

arxiv.org/abs/quant-ph/0309202v1

International Journal of Quantum Information, Vol. 3, No. 2 (2005) 425-433

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

We discuss the generation of entangled states of two two-level atoms coupled simultaneously with a dissipated atom. The dissipation of the atom is supposed to come from its coupling to a noise with adjustable intensity. We describe how the entanglement between the atoms arise in such a situation, and wether a noise except the white one could help preparation of entanglement. Besides, we confirm that the entanglement is maximized for intermediate values of the noise intensity, while it is a monotonic function of the spontaneous rates. This resembles the phenomenon of stochastic resonance and sheds more light on the idea to exploit noise in quantum information processing.

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