We address entanglement transfer from a three-mode bosonic system to a tripartite systems of spatially separated flying or fixed qubits through the interaction with their local environments. We focus on the robustness of entanglement transfer against several effects, including off-resonant interactions for both qubit-local environ- ment and local environment-bosonic mode subsystems, and also explor- ing the effect of changing the coupling constants, with the possibility to have different values for each qubit-local environment interaction. For the entangled bosonic modes we consider both Gaussian states and qubit-like states, comparing three different Generalized Schmidt De- compositions forms widely used in the literature and analyzing how the deviation from qubit-like approximation influences entanglement trans- fer. Finally, we investigate the multimode coupling between bosonic modes and each local environment showing a comparison between vari- ous qubit-like initial states and discussing how to improve the efficiency of entanglement transfer.
Robustness of tripartite entanglement transfer from bosonic modes to localized qubits / A. Lulli, M. Bina, M.G. Genoni. - In: THE EUROPEAN PHYSICAL JOURNAL. SPECIAL TOPICS. - ISSN 1951-6355. - 203:1(2012), pp. 25-47. [10.1140/epjst/e2012-01533-3]
Robustness of tripartite entanglement transfer from bosonic modes to localized qubits
A. LulliPrimo
;M. BinaSecondo
;M.G. Genoni
2012
Abstract
We address entanglement transfer from a three-mode bosonic system to a tripartite systems of spatially separated flying or fixed qubits through the interaction with their local environments. We focus on the robustness of entanglement transfer against several effects, including off-resonant interactions for both qubit-local environ- ment and local environment-bosonic mode subsystems, and also explor- ing the effect of changing the coupling constants, with the possibility to have different values for each qubit-local environment interaction. For the entangled bosonic modes we consider both Gaussian states and qubit-like states, comparing three different Generalized Schmidt De- compositions forms widely used in the literature and analyzing how the deviation from qubit-like approximation influences entanglement trans- fer. Finally, we investigate the multimode coupling between bosonic modes and each local environment showing a comparison between vari- ous qubit-like initial states and discussing how to improve the efficiency of entanglement transfer.File | Dimensione | Formato | |
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