Optimal distillation of three-qubit W states

Abstract

Some of the asymmetric three qubit $W$ states are used for perfect teleportation, superdense coding and quantum information splitting. We present the protocols for the optimal distillation of the asymmetric as well as the symmetric $W$ states from a single copy of any three qubit $W$ class pure state.

arXiv comment10 pages

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Cited by in corpus (16)

• Efficient two-step entanglement concentration for arbitrary W states
• Efficient hyperconcentration of nonlocal multipartite entanglement via the cross-Kerr nonlinearity
• Hyperconcentration for multipartite entanglement via linear optics
• Efficient W state entanglement concentration using quantum-dot and optical microcavities
• Tripartite entanglement: Foundations and applications
• Efficient entanglement concentration for arbitrary less-entangled N-atom state
• Heralded and high-efficient entanglement concentrations based on linear optics assisted by time-delay degree of freedom
• Optimal Entanglement Transformations Among N-qubit W-Class States
• Deterministic transformations of bipartite pure states
• Deterministic transformations of three-qubit entangled pure states
• Systematic entanglement concentration for unknown less-entangled three-photon W states
• Canonical operators and the optimal concentration of three-qubit Greenberger-Horne-Zeilinger states
• Creating Maximally Entangled States by Gluing
• Optimal Local Transformations of Flip and Exchange Symmetric Entangled States
• Approximate and ensemble local entanglement transformations for multipartite states
• Optimal concentrating arbitrary partially entangled W states with linear optics