%0 Generic %1 citeulike:1296915 %A Buzek, Vladimir %A Hillery, Mark %D 1996 %K beyond copying no-cloning quantum the theorem %T Quantum Copying: Beyond the No-Cloning Theorem %U http://arxiv.org/abs/quant-ph/9607018 %X We analyze to what extent it is possible to copy arbitrary states of a two-level quantum system. We show that there exists a üniversal quantum copying machine", which approximately copies quantum mechanical states in such a way that the quality of its output does not depend on the input. We also examine a machine which combines a unitary transformation with a selective measurement to produce good copies of states in a neighborhood of a particular state. We discuss the problem of measurement of the output states.

@misc{citeulike:1296915, abstract = {We analyze to what extent it is possible to copy arbitrary states of a two-level quantum system. We show that there exists a "universal quantum copying machine", which approximately copies quantum mechanical states in such a way that the quality of its output does not depend on the input. We also examine a machine which combines a unitary transformation with a selective measurement to produce good copies of states in a neighborhood of a particular state. We discuss the problem of measurement of the output states.}, added-at = {2007-08-18T13:22:24.000+0200}, author = {Buzek, Vladimir and Hillery, Mark}, biburl = {https://www.bibsonomy.org/bibtex/2af79e5516579b52507425809d364cc11/a_olympia}, citeulike-article-id = {1296915}, description = {citeulike}, eprint = {quant-ph/9607018}, interhash = {7b5f9ff037e18096cfec97d49c72015a}, intrahash = {af79e5516579b52507425809d364cc11}, keywords = {beyond copying no-cloning quantum the theorem}, month = Jul, priority = {2}, timestamp = {2007-08-18T13:22:27.000+0200}, title = {Quantum Copying: Beyond the No-Cloning Theorem}, url = {http://arxiv.org/abs/quant-ph/9607018}, year = 1996 }