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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
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Vol.2 No.5, August 2002 |
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Purification of two-qubit mixed states
(pp348-354)
E. Jane
doi:
https://doi.org/10.26421/QIC2.5-2
Abstracts:
We find the necessary and sufficient condition under
which two two-qubit mixed states can be purified into a pure maximally
entangled state by local operations and classical communication. The
optimal protocol for such transformation is obtained. This result leads
to a necessary and sufficient condition for the exact purification of
$n$ copies of a two-qubit state.
Key words:
purification, qubit |
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