Multipartite entanglement percolation
| Autor: | Antonio Acín, Maciej Lewenstein, S. Perseguers, Daniel Cavalcanti, Gerald J. Lapeyre |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Physics
Quantum discord Quantum Physics FOS: Physical sciences Quantum entanglement Squashed entanglement 01 natural sciences Multipartite entanglement Atomic and Molecular Physics and Optics 010305 fluids & plasmas Multipartite Quantum mechanics 0103 physical sciences Statistical physics W state Quantum Physics (quant-ph) 010306 general physics Amplitude damping channel Quantum teleportation |
| Zdroj: | Physical Review A |
| Popis: | We present percolation strategies based on multipartite measurements to propagate entanglement in quantum networks. We consider networks spanned on regular lattices whose bonds correspond to pure but non-maximally entangled pairs of qubits, with any quantum operation allowed at the nodes. Despite significant effort in the past, improvements over naive (classical) percolation strategies have been found for only few lattices, often with restrictions on the initial amount of entanglement in the bonds. In contrast, multipartite entanglement percolation outperform the classical percolation protocols, as well as all previously known quantum ones, over the entire range of initial entanglement and for every lattice that we considered. revtex4, 4 pages |
| Databáze: | OpenAIRE |
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