Quantum Anti-Cloning

نویسندگان

  • David D. Song
  • Lucien Hardy
چکیده

We derive the transformation for the optimal universal quantum anti-cloner which produces two anti-parallel outputs for a single input state. The fidelity is shown to be 2/3 which is same as the measurement fidelity. We consider a probabilistic quantum anti-cloner and show quantum states can be anti-cloned exactly with nonzero probability and its efficiency is higher than the efficiency of distinguishing between the two states. 1 E-mail: [email protected] 2 E-mail: [email protected]

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تاریخ انتشار 2000