Numerical Analysis of the Capacities for Two-Qubit Unitary Operations

Details Numerical Analysis of the Capacities for Two-Qubit Unitary Operations Numerical Analysis of the Capacities for Two-Qubit Unitary Operations

2003-07-08

arxiv.org/abs/quant-ph/0307058v1

Phys. Rev. A 71, 022304 (2004)

Physics

Quantum Physics

9 pages, 10 figures

Scientific paper

10.1103/PhysRevA.71.022304

We present numerical results on the capacities of two-qubit unitary operations for creating entanglement and increasing the Holevo information of an ensemble. In all cases tested, the maximum values calculated for the capacities based on the Holevo information are close to the capacities based on the entanglement. This indicates that the capacities based on the Holevo information, which are very difficult to calculate, may be estimated from the capacities based upon the entanglement, which are relatively straightforward to calculate.

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