Browsing by Author "Ekert, A.K."

Now showing items 1-3 of 3

    • Distributed quantum computation over noisy channels 

      Cirac, J.; Ekert, A.K.; Huelga, S.F.; Macchiavello, C. (1999)
      We analyse the use of entangled states to perform quantum computations non locally among distant nodes in a quantum network. The complexity associated with the generation of multiparticle entangled states is quantified in ...

    • Improvement of frequency standards with quantum entanglement 

      Huelga, S.F.; Macchiavello, C.; Pellizzari, T.; Ekert, A.K.; Plenio, M.B.; Cirac, J. (1997)
      The optimal precision of frequency measurements in the presence of decoherence is discussed. We analyse different preparations of n two-level systems as well as different measurements procedures. We show that standard ...

    • Quantum computing with controlled-NOT and few qubits 

      Bruss, D.; Ekert, A.K.; Huelga, S.F.; Pan, J.W.; Zeilinger, A. (1997)
      We describe simple quantum networks which allow us to prepare, manipulate and measure quantum entanglement of few qubits.