141 citations · 1.8k across the 84 of their papers we have counts for
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Long-distance entanglement in many-body atomic and optical systems
Salvatore M. Giampaolo, Fabrizio Illuminati
We discuss the phenomenon of long-distance entanglement in the ground state of quantum spin models, its use in high-fidelity and robust quantum communication, and its realization i…
Probing Quantum Frustrated Systems via Factorization of the Ground State
Salvatore M. Giampaolo, Gerardo Adesso, Fabrizio Illuminati
The existence of definite orders in frustrated quantum systems is related rigorously to the occurrence of fully factorized ground states below a threshold value of the frustration.…
Long-distance entanglement and quantum teleportation in coupled cavity arrays
Salvatore M. Giampaolo, Fabrizio Illuminati
We introduce quantum spin models whose ground states allow for sizeable entanglement between distant spins. We discuss how spin models with global end-to-end entanglement realize q…
Separability and ground state factorization in quantum spin systems
S. M. Giampaolo, G. Adesso, F. Illuminati
We investigate the existence and the properties of fully separable (fully factorized) ground states in quantum spin systems. Exploiting techniques of quantum information and entang…