Fast high-fidelity multi-qubit state transfer with long-range interactions
Abstract
We describe an efficient protocol to perform quantum state transfer using Hamiltonian dynamics with long-range interactions. The time to transfer n qubits a sufficiently large distance is proportional to n. Even without error correction, the fidelity of this multi-qubit state transfer process remains finite for arbitrarily well-separated qubits in the presence of uncorrelated random errors in coupling constants.
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