Indistinguishability of Elementary Systems as a Resource for Quantum Information Processing.

  title={Indistinguishability of Elementary Systems as a Resource for Quantum Information Processing.},
  author={Rosario Lo Franco and Giuseppe Compagno},
  journal={Physical review letters},
  volume={120 24},
Typical elements of quantum networks are made by identical systems, which are the basic particles constituting a resource for quantum information processing. Whether the indistinguishability due to particle identity is an exploitable quantum resource remains an open issue. Here we study independently prepared identical particles showing that, when they spatially overlap, an operational entanglement exists that can be made manifest by means of separated localized measurements. We prove this… 

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