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      Finite-time disentanglement via spontaneous emission.

      Physical review letters

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          Abstract

          We show that under the influence of pure vacuum noise two entangled qubits become completely disentangled in a finite-time, and in a specific example we find the time to be given by ln((2+sqrt[2] / 2) times the usual spontaneous lifetime.

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          Journal
          10.1103/PhysRevLett.93.140404
          15524773

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