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Abstract: We introduce quantum spin models whose ground states allow for sizeableentanglement between distant spins. We discuss how spin models with globalend-to-end entanglement realize quantum teleportation channels with optimalcompromise between scalability and resilience to thermal decoherence, and canbe implemented straightforwardly in suitably engineered arrays of coupledoptical cavities.



Autor: Salvatore M. Giampaolo, Fabrizio Illuminati

Fuente: https://arxiv.org/







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