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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
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Vol.6 No.4&5 July 2006 |
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Generalized asymmetric quantum cloning machines
(pp410-435)
Sofyan Iblisdir, Antonio Acin, and
Nicolas Gisin
doi:
https://doi.org/10.26421/QIC6.4-5-8
Abstracts:
We study machines that take N identical
replicas of a pure qudit state as input and output a set of M_A clones
of a given fidelity and another set of M_B clones
of another fidelity. The trade-off between these two fidelities is
investigated, and numerous examples of optimal N
\to M_A+M_B cloning
machines are exhibited using a generic method. A generalisation to more
than two sets of clones is also discussed. Finally, an optical
implementation of some such machines is proposed. This paper is an
extended version of Phys. Rev. A 72,
042328 (2005).
Key words:
Quantum cloning, quantum information theory |
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