Simplified instantaneous non-local quantum computation with applications to position-based cryptography

@inproceedings{Beigi2011SimplifiedIN,
  title={Simplified instantaneous non-local quantum computation with applications to position-based cryptography},
  author={Salman Beigi and Robert K{\"o}nig},
  year={2011}
}
Instantaneous measurements of non-local observables between space-like separated regions can be performed without violating causality. This feat relies on the use of entanglement. Here we propose novel protocols for this task and the related problem of multipartite quantum computation with local operations and a single round of classical communication. Compared to previously known techniques, our protocols reduce the entanglement consumption by an exponential amount. We also prove a linear… CONTINUE READING

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