Transfer and teleportation of quantum states encoded in decoherence-free subspace

Abstract

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.

arXiv comment4 pages, 3 figures

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Cited by in corpus (10)

• Quantum information processing with a single photon by input-output process regarding low-Q cavities
• Scalable quantum information processing with atomic ensembles and flying photons
• Kerr-effect-based quantum logical gates in decoherence-free subspace
• Many-qubit network employing cavity QED in a decoherence-free subspace
• Sudden death, birth and stable entanglement in a two-qubit Heisenberg XY spin chain
• Dynamically stabilized decoherence-free states in non-Markovian open fermionic systems
• Atomic quantum state transferring and swapping via quantum Zeno dynamics
• Heralded entangling quantum gate via cavity-assisted photon scattering
• Entanglement and quantum phase transition in alternating XY spin chain with next-nearest neighbour interactions
• Multipartite entanglement purification for three-level trapped atom systems