Protocol prepares Bell states between distant qubits in a spin-1/2 chain via engineered XX Hamiltonian with excited central spin initial state.
This is caused by the fact that the minimal coupling constant in (32)D min ∼ √ N, therefore the relative perturbation amplitudeε/D min decreases withNas∼1/ √ Nat fixedε
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Teleportation via spin-1/2 chain in solid-state quantum architecture
Protocol prepares Bell states between distant qubits in a spin-1/2 chain via engineered XX Hamiltonian with excited central spin initial state.