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Dissipative preparation of generalized Bell states

New paper by Ryan Sweke, Ilya Sinayiskiy and Francesco Petruccione.

Dissipative preparation of generalized Bell states

Ryan Sweke, Ilya Sinayskiy, and Francesco Petruccione

Reference: 2013, J. Phys. B: At. Mol. Opt. Phys. 46 104004


Abstract: A scheme is presented for the dissipative preparation of generalized Bell states of two qubits, within the context of cavity QED. In the suggested protocol the dissipative processes of spontaneous emission and cavity loss are no longer undesirable, but essential to the required dynamics. Extremely long-lived target states are achieved, with fidelities of near unity, utilizing cooperativities corresponding to currently available optical cavities. Furthermore, the suggested protocol exhibits excellent scaling of relevant characteristics, with respect to cooperativity, such that improved results may be obtained as the capabilities continues.

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