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Quantum physics: Spooky action gets collective

Weidemuller, Matthias

Nature, June 27, 2013, Vol.498(7455), p.438(2) [Periódico revisado por pares]

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  • Título:
    Quantum physics: Spooky action gets collective
  • Autor: Weidemuller, Matthias
  • Assuntos: Quantum Mechanics – Research
  • É parte de: Nature, June 27, 2013, Vol.498(7455), p.438(2)
  • Descrição: Networks used for quantum computing and communication generally combine the storage of quantum information in atomic memories with its transmission by light. The key process underlying such networks is atomlight entanglement. If the entanglement generation time is long which occurs if the light is emitted spontaneously it becomes impractical to scale the network up to more than two nodes. The authors report a more efficient approach in which they use an ultracold gas of trapped Rydberg atoms (rubidium-87 atoms) to achieve deterministic entanglement between light and an optical atomic coherence. The results pave the way for functional, many-node quantum networks.
  • Idioma: Inglês

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