Transfer and teleportation of quantum states encoded in decoherence-free subspace
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quant-ph
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quantumdecoherence-freeencodedgatestatessubspaceteleportationtransfer
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Quantum state transfer and teleportation, with qubits encoded in internal states of the atoms in cavities, among spatially separated nodes of a quantum network in decoherence-free subspace are proposed, based on a cavity-assisted interaction by single-photon pulses. We show in details the implementation of a logic-qubit Hadamard gate and a two-logic-qubit conditional gate, and discuss the experimental feasibility of our scheme.
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