Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics

Rosario Lo Franco, Adeline Orieux, Antonio D'Arrigo, Giacomo Ferranti, Fabio Sciarrino, Elisabetta Paladino, Paolo Mataloni, Giuseppe Falci, Giuliano Benenti, Rosario Lo Franco

Risultato della ricerca: Article

97 Citazioni (Scopus)

Abstract

In many applications entanglement must be distributed through noisy communication channels that unavoidably degrade it. Entanglement cannot be generated by local operations and classical communication (LOCC), implying that once it has been distributed it is not possible to recreate it by LOCC. Recovery of entanglement by purely local control is however not forbidden in the presence of non-Markovian dynamics, and here we demonstrate in two all-optical experiments that such entanglement restoration can even be achieved on-demand. First, we implement an open-loop control scheme based on a purely local operation, without acquiring any information on the environment; then, we use a closed-loop scheme in which the environment is measured, the outcome controling the local operations on the system. The restored entanglement is a manifestation of "hidden" quantum correlations resumed by the local control. Relying on local control, both schemes improve the efficiency of entanglement sharing in distributed quantum networks.
Lingua originaleEnglish
pagine (da-a)8575-
Numero di pagine8
RivistaScientific Reports
Volume5
Stato di pubblicazionePublished - 2015

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recovery
communication
restoration

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Lo Franco, R., Orieux, A., D'Arrigo, A., Ferranti, G., Sciarrino, F., Paladino, E., ... Lo Franco, R. (2015). Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics. Scientific Reports, 5, 8575-.

Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics. / Lo Franco, Rosario; Orieux, Adeline; D'Arrigo, Antonio; Ferranti, Giacomo; Sciarrino, Fabio; Paladino, Elisabetta; Mataloni, Paolo; Falci, Giuseppe; Benenti, Giuliano; Lo Franco, Rosario.

In: Scientific Reports, Vol. 5, 2015, pag. 8575-.

Risultato della ricerca: Article

Lo Franco, R, Orieux, A, D'Arrigo, A, Ferranti, G, Sciarrino, F, Paladino, E, Mataloni, P, Falci, G, Benenti, G & Lo Franco, R 2015, 'Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics', Scientific Reports, vol. 5, pagg. 8575-.
Lo Franco R, Orieux A, D'Arrigo A, Ferranti G, Sciarrino F, Paladino E e altri. Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics. Scientific Reports. 2015;5:8575-.
Lo Franco, Rosario ; Orieux, Adeline ; D'Arrigo, Antonio ; Ferranti, Giacomo ; Sciarrino, Fabio ; Paladino, Elisabetta ; Mataloni, Paolo ; Falci, Giuseppe ; Benenti, Giuliano ; Lo Franco, Rosario. / Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics. In: Scientific Reports. 2015 ; Vol. 5. pagg. 8575-.
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AU - Lo Franco, Rosario

AU - Orieux, Adeline

AU - D'Arrigo, Antonio

AU - Ferranti, Giacomo

AU - Sciarrino, Fabio

AU - Paladino, Elisabetta

AU - Mataloni, Paolo

AU - Falci, Giuseppe

AU - Benenti, Giuliano

AU - Lo Franco, Rosario

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AB - In many applications entanglement must be distributed through noisy communication channels that unavoidably degrade it. Entanglement cannot be generated by local operations and classical communication (LOCC), implying that once it has been distributed it is not possible to recreate it by LOCC. Recovery of entanglement by purely local control is however not forbidden in the presence of non-Markovian dynamics, and here we demonstrate in two all-optical experiments that such entanglement restoration can even be achieved on-demand. First, we implement an open-loop control scheme based on a purely local operation, without acquiring any information on the environment; then, we use a closed-loop scheme in which the environment is measured, the outcome controling the local operations on the system. The restored entanglement is a manifestation of "hidden" quantum correlations resumed by the local control. Relying on local control, both schemes improve the efficiency of entanglement sharing in distributed quantum networks.

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