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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
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Vol.1 No.3, October 2001 |
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Optimal
two-particle entanglement by universal quantum processes
(pp33-51)
Gernot Alber, Also Delgado, and Igor Jex
doi:
https://doi.org/10.26421/QIC1.3-3
Abstracts:
Within the class of all possible universal (covariant)
two-particle quantum processes in arbitrary dimensional Hilbert spaces
those universal quantum processes are determined whose output states
optimize the recently proposed entanglement measure of Vidal and Werner.
It is demonstrated that these optimal entanglement processes belong to a
one-parameter family of universal entanglement processes whose output
states do not contain any separable components. It is shown that these
optimal universal entanglement processes generate antisymmetric output
states and, with the single exception of qubit systems, they preserve
information about the initial input state.
Key words:
entanglement, universal quantum processes, quantum cloning |
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