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Physical Review A

Realizing a partial general quantum cloning machine with superconducting quantum-interference devices in a cavity QED

Bao‐Long Fang, Zhen‐Biao Yang, Liu Ye

Published May 22, 2009• 15 citations
Publisher

Abstract

We propose a scheme for implementing a partial general quantum cloning machine with superconducting quantum-interference devices coupled to a nonresonant cavity. By regulating the time parameters, our system can perform optimal symmetric (asymmetric) universal quantum cloning, optimal symmetric (asymmetric) phase-covariant cloning, and optimal symmetric economical phase-covariant cloning. In the scheme the cavity is only virtually excited, thus, the cavity decay is suppressed during the cloning operations.

DOI
10.1103/physreva.79.054308

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