The relative entropy of entanglement of Schmidt correlated states and distillation

Details The relative entropy of entanglement of Schmidt correlated states and distillation The relative entropy of entanglement of Schmidt correlated states and distillation

2002-04-26

arxiv.org/abs/quant-ph/0204152v2

Physics

Quantum Physics

7 pages, no figures, to appear in QIC

Scientific paper

We show that a mixed state $\rho=\sum_{mn}a_{mn}|m> < n|$ can be realized by
an ensemble of pure states $\{p_{k}, |\phi_{k} > \}$ where
$|\phi_{k}>=\sum_{m}\sqrt{a_{mm}}e^{i\theta_{m}^{k}}|m>$. Employing this form,
we discuss the relative entropy of entanglement of Schmidt correlated states.
Also, we calculate the distillable entanglement of a class of mixed states.

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