Economical phase-covariant cloning of qudits
نویسندگان
چکیده
منابع مشابه
Optimal mirror phase-covariant cloning
We propose a quantum cloning machine, which clones a qubit into two clones assuming known modulus of expectation value of Pauli z matrix. The process is referred to as the mirror phase-covariant cloning for which the input state is a priori less known than that for the standard phase-covariant cloning. Analytical expressions describing the cloning transformation and fidelity of the clones are f...
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Hongwei Chen, Xianyi Zhou, Dieter Suter, and Jiangfeng Du* Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China Fachbereich Physik, Universität Dortmund, 44221 Dortmund, Germany Received 29 November 2006; revised manuscript received 21 December 2006; publishe...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2005
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.71.042327