V. Buzek and M. Hillery: Universal optimal cloning of qubits and quantum registers, to be presented at the First NASA Conference of Quantum Computing and Quantum Communications, 17-20, February 1998, Palm Springs U. S. A. Home/Search Document Not in Database Summary Related Articles Check |
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Copying quantum computer makes NP-complete problems tractable - Hirvensalo (Correct)
....again. This would not lengthen the expected running time essentially (details are left to reader) since the probability of seeing m zeros consecutively is at most Delta m . Unfortunately, exact quantum copymachines do not exist [12] but maybe we could somehow utilize approximate copying [4]. ffl Maybe a clever quantum error correction scheme could do the restoration after an unsuccessful measurement without an assumption of quantum copymachine. ffl In fact, we can force 1 to be observed each time: We should first prepare superposition j 1i n Delta r j 0i j ....
V. Buzek and M. Hillery: Universal optimal cloning of qubits and quantum registers, to be presented at the First NASA Conference of Quantum Computing and Quantum Communications, 17-20, February 1998, Palm Springs U. S. A.
Copying quantum computer makes NP-complete problems tractable - Hirvensalo (Correct)
....This would not lengthen the expected running time essentially (details are left to reader) since the probability of seeing m zeros consecutively is at most Gamma 1 2 Delta m . Unfortunately, exact quantum copymachines do not exist [12] but maybe we could somehow utilize approximate copying [4]. ffl Maybe a clever quantum error correction scheme could do the restoration after an unsuccessful measurement without an assumption of quantum copymachine. ffl In fact, we can force 1 to be observed each time: We should first prepare superposition 1 n j 1i Gamma 1 p 2 n 2 n Gamma1 ....
V. Buzek and M. Hillery: Universal optimal cloning of qubits and quantum registers, to be presented at the First NASA Conference of Quantum Computing and Quantum Communications, 17-20, February 1998, Palm Springs U. S. A.
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