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Driven-dissipative preparation of entangled states in cascaded quantum-optical networks

Stannigel, K ; Rabl, P ; Zoller, P

New journal of physics, 2012-06, Vol.14 (6), p.63014 [Periódico revisado por pares]

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Título:
Driven-dissipative preparation of entangled states in cascaded quantum-optical networks
Autor: Stannigel, K ; Rabl, P ; Zoller, P
É parte de: New journal of physics, 2012-06, Vol.14 (6), p.63014
Descrição: We study the dissipative dynamics and the formation of entangled states in driven cascaded quantum networks, where multiple systems are coupled to a common unidirectional bath. Specifically, we identify the conditions under which emission and coherent reabsorption of radiation drives the whole network into a pure stationary state with non-trivial quantum correlations between the individual nodes. We illustrate this effect in more detail for the example of cascaded two-level systems, where we present an explicit preparation scheme that allows one to tune the whole network through 'bright' and 'dark' states associated with different multi-partite entanglement patterns. In a complementary setting consisting of cascaded nonlinear cavities, we find that two cavity modes can be driven into a non-Gaussian entangled dark state. Potential realizations of such cascaded networks with optical and microwave photons are discussed.
Editor: IOP Publishing
Idioma: Inglês

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