Pauli Cloning of a Quantum Bit
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- 8 May 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 84 (19) , 4497-4500
- https://doi.org/10.1103/physrevlett.84.4497
Abstract
A family of asymmetric quantum cloning machines is introduced that produce two approximate copies of a single quantum bit, each copy emerging from a Pauli channel. A no-cloning inequality is derived, describing the balance between the quality of the copies. The Pauli cloning machine is also shown to put a limit on the quantum capacity of Pauli channels.Keywords
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